10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended March 30, 2013

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number 001-11625

Pentair Ltd.

(Exact name of Registrant as specified in its charter)

Switzerland	98-1050812
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification number)
Freier Platz 10, 8200 Schaffhausen, Switzerland
(Address of principal executive offices)

Registrant’s telephone number, including area code: 41-52-630-48-00

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.  Yes þ No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§223.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes þ No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer þ	Accelerated filer ¨	Non-accelerated filer ¨	Smaller reporting company ¨
		(Do not check if a smaller reporting company)

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No þ

On March 30, 2013, 204,522,310 shares of Registrant’s common stock were outstanding.

Pentair Ltd. and Subsidiaries

		Page(s)
PART I FINANCIAL INFORMATION
ITEM 1.	Financial Statements (unaudited)
	Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) for the three months ended March 30, 2013 and March 31, 2012		3
	Condensed Consolidated Balance Sheets as of March 30, 2013 and December 31, 2012		4
	Condensed Consolidated Statements of Cash Flows for the three months ended March 30, 2013 and March 31, 2012		5
	Condensed Consolidated Statements of Changes in Equity for the three months ended March 30, 2013 and March 31, 2012		6
	Notes to Condensed Consolidated Financial Statements		7 –25
ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		26 –35
ITEM 3.	Quantitative and Qualitative Disclosures about Market Risk		36
ITEM 4.	Controls and Procedures		36
PART II OTHER INFORMATION
ITEM 1.	Legal Proceedings		37
ITEM 1A.	Risk Factors		37
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds		37
ITEM 6.	Exhibits		38
	Signatures		39

2

PART I FINANCIAL INFORMATION

ITEM 1.    FINANCIAL STATEMENTS

Pentair Ltd. and Subsidiaries

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited)

	Three months ended
In millions, except per-share data		March 30, 2013			March 31, 2012
Net sales	$	1,774		$	858
Cost of goods sold		1,250			577
Gross profit		524			281
Selling, general and administrative		416			174
Research and development		34			21
Operating income		74			86
Other (income) expense:
Equity income of unconsolidated subsidiaries		—			(2)
Gain on sale of business		(17	)		—
Net interest expense		17			15
Income before income taxes and noncontrolling interest		74			73
Provision for income taxes		21			10
Net income before noncontrolling interest		53			63
Noncontrolling interest		1			1
Net income attributable to Pentair Ltd.	$	52		$	62
Comprehensive income (loss), net of tax
Net income before noncontrolling interest	$	53		$	63
Changes in cumulative translation adjustment		(76	)		40
Changes in market value of derivative financial instruments		1			2
Total comprehensive income (loss)		(22	)		105
Less: Comprehensive income attributable to noncontrolling interest		1			2
Comprehensive income (loss) attributable to Pentair Ltd.	$	(23	)	$	103
Earnings per common share attributable to Pentair Ltd.
Basic	$	0.25		$	0.63
Diluted	$	0.25		$	0.62
Weighted average common shares outstanding
Basic		204.8			98.6
Diluted		208.2			100.4
Cash dividends paid per common share	$	0.23		$	0.22

See accompanying notes to condensed consolidated financial statements.

3

Pentair Ltd. and Subsidiaries

Condensed Consolidated Balance Sheets (Unaudited)

	March 30,			December 31,
In millions, except per-share data	2013			2012
Assets
Current assets
Cash and cash equivalents	$	215		$	261
Accounts and notes receivable, net of allowances of $42 and $37, respectively		1,404			1,295
Inventories		1,327			1,379
Other current assets		344			324
Total current assets		3,290			3,259
Property, plant and equipment, net		1,222			1,224
Other assets
Goodwill		4,867			4,895
Intangibles, net		1,859			1,910
Other non-current assets		483			487
Total other assets		7,209			7,292
Total assets	$	11,721		$	11,775
Liabilities and Equity
Current liabilities
Current maturities of long-term debt and short-term borrowings	$	6		$	3
Accounts payable		580			570
Employee compensation and benefits		264			294
Other current liabilities		633			672
Total current liabilities		1,483			1,539
Other liabilities
Long-term debt		2,592			2,454
Pension and other post-retirement compensation and benefits		370			378
Deferred tax liabilities		481			488
Other non-current liabilities		452			437
Total liabilities		5,378			5,296
Equity
Common shares CHF 0.50 par value, 213.0 authorized and issued at March 30, 2013 and December 31, 2012, respectively		113			113
Common shares held in treasury, 8.5 and 6.9 shares at March 30, 2013 and December 31, 2012, respectively		(406	)		(315)
Capital contribution reserve		5,264			5,285
Retained earnings		1,344			1,292
Accumulated other comprehensive income (loss)		(87	)		(12)
Shareholders’ equity attributable to Pentair Ltd.		6,228			6,363
Noncontrolling interest		115			116
Total equity		6,343			6,479
Total liabilities and equity	$	11,721		$	11,775

See accompanying notes to condensed consolidated financial statements.

4

Pentair Ltd. and Subsidiaries

Condensed Consolidated Statements of Cash Flows (Unaudited)

	Three months ended
	March 30,			March 31,
In millions	2013			2012
Operating activities
Net income before noncontrolling interest	$	53		$	63
Adjustments to reconcile net income before noncontrolling interest to net cash provided by (used for) operating activities
Equity income of unconsolidated subsidiaries		—			(2)
Depreciation		38			16
Amortization		42			10
Deferred income taxes		2			—
Gain on sale of business		(17	)		—
Share-based compensation		10			5
Excess tax benefits from share-based compensation		—			(1)
Gain on sale of assets		—			(1)
Changes in assets and liabilities, net of effects of business acquisitions
Accounts and notes receivable		(129	)		(100)
Inventories		29			(20)
Other current assets		(22	)		3
Accounts payable		21			(4)
Employee compensation and benefits		(24	)		(24)
Other current liabilities		9			15
Other non-current assets and liabilities		8			(28)
Net cash provided by (used for) operating activities		20			(68)
Investing activities
Capital expenditures		(50	)		(16)
Proceeds from sale of property and equipment		1			2
Proceeds from sale of business, net		30			—
Other		—			(3)
Net cash provided by (used for) investing activities		(19	)		(17)
Financing activities
Net receipts of short-term borrowings		3			15
Net receipts of commercial paper and revolving long-term debt		140			102
Repayments of long-term debt		(2	)		(13)
Debt issuance costs		(1	)		—
Excess tax benefits from share-based compensation		—			1
Shares issued to employees, net of shares withheld		11			7
Repurchases of common shares		(140	)		—
Dividends paid		(47	)		(22)
Distribution to noncontrolling interest		(2	)		—
Net cash provided by (used for) financing activities		(38	)		90
Effect of exchange rate changes on cash and cash equivalents		(9	)		—
Change in cash and cash equivalents		(46	)		5
Cash and cash equivalents, beginning of period		261			50
Cash and cash equivalents, end of period	$	215		$	55

See accompanying notes to condensed consolidated financial statements.

5

Pentair Ltd. and Subsidiaries

Condensed Consolidated Statements of Changes in Equity (Unaudited)

In millions	Common shares				Treasury shares						Capital contribution			Retained		Accumulated other comprehensive			Total			Noncontrolling
	Number		Amount		Number			Amount			reserve			earnings		income (loss)			Pentair Ltd.			interest			Total
Balance - December 31, 2012		213.0	$	113		(6.9	)	$	(315	)	$	5,285		$	1,292	$	(12	)		6,363		$	116		$	6,479
Net income		—		—		—			—			—			52		—			52			1			53
Change in cumulative translation adjustment		—		—		—			—			—			—		(76	)		(76	)		—			(76)
Changes in market value of derivative financial instruments, net of $0 tax		—		—		—			—			—			—		1			1			—			1
Tax benefits of share-based compensation		—		—		—			—			6			—		—			6			—			6
Dividends declared		—		—		—			—			1			—		—			1			—			1
Distribution to noncontrolling interest		—		—		—			—			—			—		—			—			(2	)		(2)
Share repurchase		—		—		(2.7	)		(140	)		—			—		—			(140	)		—			(140)
Exercise of options, net of shares tendered for payment		—		—		0.8			34			(11	)		—		—			23			—			23
Issuance of restricted shares, net of cancellations		—		—		0.5			24			(24	)		—		—			—			—			—
Shares surrendered by employees to pay taxes		—		—		(0.2	)		(9	)		(3	)		—		—			(12	)		—			(12)
Share-based compensation		—		—		—			—			10			—		—			10			—			10
Balance - March 30, 2013		213.0	$	113		(8.5	)	$	(406	)	$	5,264		$	1,344	$	(87	)	$	6,228		$	115		$	6,343

In millions	Common shares					Treasury shares				Capital contribution			Retained			Accumulated other comprehensive			Total			Noncontrolling
	Number			Amount		Number		Amount		reserve			earnings			income (loss)			Pentair Ltd.			interest		Total
Balance - December 31, 2011		98.6		$	48		—	$	—	$	458		$	1,465		$	(38	)		1,933		$	114	$	2,047
Net income		—			—		—		—		—			62			—			62			1		63
Change in cumulative translation adjustment		—			—		—		—		—			—			39			39			1		40
Changes in market value of derivative financial instruments, net of $1 tax		—			—		—		—		—			—			2			2			—		2
Dividends declared		—			—		—		—		—			(22	)		—			(22	)		—		(22)
Exercise of options, net of shares tendered for payment		0.3			—		—		—		10			—			—			10			—		10
Issuance of restricted shares, net of cancellations		0.2			—		—		—		4			—			—			4			—		4
Shares surrendered by employees to pay taxes		(0.1	)		—		—		—		(2	)		—			—			(2	)		—		(2)
Share-based compensation		—			—		—		—		2			—			—			2			—		2
Balance - March 31, 2012		99.0		$	48		—	$	—	$	472		$	1,505		$	3		$	2,028		$	116	$	2,144

See accompanying notes to condensed consolidated financial statements.

6

Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

1. Basis of Presentation and Responsibility for Interim Financial Statements

The accompanying unaudited condensed consolidated financial statements of Pentair Ltd. and subsidiaries (“we,” “us,” “our,” “Pentair,” or “the Company”) have been prepared following the requirements of the U.S. Securities and Exchange Commission (“SEC”) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by accounting principles generally accepted in the United States of America can be condensed or omitted.

We are responsible for the unaudited financial statements included in this document. The financial statements include all normal recurring adjustments that are considered necessary for the fair presentation of our financial position and operating results. As these are condensed financial statements, one should also read our consolidated financial statements and notes thereto, which are included in our Annual Report on Form 10-K for the year ended December 31, 2012.

Revenues, expenses, cash flows, assets and liabilities can and do vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be indicative of those for a full year.

Our fiscal year ends on December 31. We report our interim quarterly periods on a 13-week basis ending on a Saturday.

New Accounting Standards

In February 2013, the FASB issued authoritative guidance surrounding the presentation of items reclassified from Accumulated other comprehensive income (loss) (“AOCI”) to net income. This guidance requires entities to disclose, either in the notes to the consolidated financial statements or parenthetically on the face of the statement that reports comprehensive income, items reclassified out of AOCI and into net income in their entirety and the effect of the reclassification on each affected net income line item. In addition, for AOCI reclassification items that are not reclassified in their entirety into net income, a cross reference to other required disclosures is required. This guidance was effective for fiscal years and interim periods beginning after December 15, 2012. The adoption of this guidance on January 1, 2013 did not impact our financial condition or results of operations. The reclassifications out of AOCI and into net income were not material for the three months ended March 30, 2013.

2. Acquisitions and Divestitures

Material acquisitions

Pentair Ltd., formerly known as Tyco Flow Control International Ltd. (as used prior to the Merger (as defined below), “Flow Control”), took its current form on September 28, 2012 as a result of a spin-off of Flow Control from its parent, Tyco International Ltd. (“Tyco”), and a reverse acquisition involving Pentair, Inc. Prior to the spin-off, Tyco engaged in an internal restructuring whereby it transferred to Flow Control certain assets related to the flow control business of Tyco, and Flow Control assumed from Tyco certain liabilities related to the flow control business of Tyco. On September 28, 2012 prior to the Merger, Tyco effected a spin-off of Flow Control through the pro-rata distribution of 100% of the outstanding common shares of Flow Control to Tyco’s shareholders (the “Distribution”), resulting in the distribution of approximately 110.9 million of our common shares to Tyco’s shareholders. Immediately following the Distribution, an indirect, wholly-owned subsidiary of ours merged with and into Pentair, Inc., with Pentair, Inc. surviving as an indirect, wholly-owned subsidiary of ours (the “Merger”). The Merger was accounted for as a reverse acquisition under the purchase method of accounting with Pentair, Inc. treated as the acquirer. Flow Control’s net sales and income for the three months ending March 30, 2013 were $888 million and $22 million, respectively.

During the first quarter of 2013, the Company recorded fair value adjustments to its preliminary allocation of purchase price, including increases to accounts receivable, current liabilities, and net deferred tax liabilities and decreases to inventory, other current assets, property, plant and equipment and other non-current assets. These adjustments were applied retrospectively back to the date of the Merger. The net impact of those adjustments increased the preliminary allocation of goodwill by less than $1 million.

The purchase price has been preliminarily allocated based on the estimated fair value of net assets acquired and liabilities assumed at the date of the Merger. The preliminary purchase price allocation is subject to further refinement and may require significant adjustments to arrive at the final purchase price allocation. These adjustments will primarily relate to accounts receivable, inventories, property, plant and equipment, certain contingent liabilities and income tax-related items. We expect the purchase price allocation to be completed in the third quarter of 2013. There can be no assurance that such finalization will not result in material changes from the preliminary purchase price allocation. The purchase price is subject to a working capital and net indebtedness adjustment.

7

Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

The following table summarizes our preliminary fair values of the assets acquired and liabilities assumed in the Merger:

In millions
Cash and cash equivalents	$	692
Accounts and notes receivable		774
Inventories		1,045
Other current assets		98
Property, plant and equipment		820
Goodwill		2,526
Intangibles		1,425
Other non-current assets		275
Current liabilities		(865)
Long-term debt		(915)
Income taxes, including current and deferred		(361)
Other liabilities and redeemable noncontrolling interest		(591)
Total purchase price	$	4,923

The excess of purchase price over tangible net assets and identified intangible assets acquired was allocated to goodwill in the amount of $2,526 million. Goodwill has been preliminarily allocated to our reporting segments as follows: $321 million to Water & Fluid Solutions, $1,334 million to Valves & Controls and $871 million to Technical Solutions. None of the goodwill recognized from the Merger is expected to be deductible for income tax purposes. Goodwill recognized from the Merger reflects the value of future income resulting from synergies of our combined operations. Identifiable intangible assets acquired as part of the Merger were $1,425 million and include $362 million of indefinite life trade name intangibles and the following definite-lived intangibles: $906 million of customer relationships with a weighted average useful life of 14.2 years, $116 million of proprietary technology with a weighted average useful life of 13.7 years and $41 million of customer backlog with a weighted average useful life of less than one year.

Pro forma results of material acquisitions

The following unaudited pro forma condensed consolidated financial results of operations are presented as if the Merger had been completed on January 1, 2011:

	Three months ended
In millions, except per-share data	March 31, 2012
Pro forma net sales	$	1,857
Pro forma net income attributable to Pentair Ltd.		107
Diluted earnings per common share attributable to Pentair Ltd.		0.51

The 2012 unaudited pro forma net income excludes the impact of $12 million of transaction related costs associated with the Merger.

The pro forma consolidated financial information was prepared for comparative purposes only and includes certain adjustments, as noted above. The adjustments are estimates based on currently available information and actual amounts may have differed materially from these estimates. They do not reflect the effect of costs or synergies that would have been expected to result from the integration of Flow Control. The pro forma information does not purport to be indicative of the results of operations that actually would have resulted had the business combination occurred at the beginning of the period presented or of future results of the consolidated entities.

Other acquisitions

On October 4, 2012, we acquired, as part of Valves & Controls, the remaining 25% equity interest in Pentair Middle East Holding S.a.r.l. (“KEF”), a privately held company, for $100 million in cash. Prior to the acquisition, we held a 75% equity interest in KEF, a vertically integrated valve manufacturer in the Middle East. There was no pro forma impact from this acquisition as the results of KEF were consolidated into Flow Control’s financial statements prior to acquiring the remaining 25% interest in KEF.

8

Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

Additionally, during the year ended December 31, 2012, we completed other small acquisitions as part of Water & Fluid Solutions with purchase prices totaling $121 million in cash, net of cash acquired. Total goodwill recorded as part of the purchase price allocations was $81 million, $67 million of which is tax deductible.

Divestitures

During the first quarter of 2013, we sold a business that was part of Technical Solutions for cash of $30 million, net of transaction costs, resulting in a gain of $17 million. Goodwill of $5 million was included in the assets of the business sold. The sales price is subject to a working capital adjustment.

3. Share Plans

Total share-based compensation expense was $10 million and $5 million for the first quarter of 2013 and 2012, respectively. Total compensation expense for restricted stock units during the first quarter of 2013 and 2012 was $7 million and $3 million, respectively. Restricted stock units are valued at market value on the date of grant and are typically expensed over a three to four year vesting period. Total compensation expense for stock option awards was $3 million and $2 million for the first quarter of 2013 and 2012, respectively. Option awards are granted with an exercise price equal to the market price of our common shares on the date of grant. Option awards generally vest over a three-year period and are expensed over the vesting period.

During the first quarter of 2013, we issued our annual share-based compensation grants under the Pentair Ltd. 2012 Stock and Incentive Plan to eligible employees. The total number of awards issued was approximately 1.2 million, of which 0.9 million were stock options and 0.3 million were restricted stock units. The weighted-average grant date fair value of the stock options and restricted stock units issued was $13.89 and $50.60, respectively.

We estimated the fair value of each stock option award on the date of grant using a Black-Scholes option pricing model, modified for dividends and using the following assumptions:

	March 30,     2013		March 31,       2012
Risk-free interest rate		0.69%		0.96%
Expected dividend yield		2.01%		2.48%
Expected share price volatility		36.0%		36.5%
Expected term (years)		5.7		5.7

These estimates require us to make assumptions based on historical results, observance of trends in our share price, changes in option exercise behavior, future expectations and other relevant factors. If other assumptions had been used, share-based compensation expense, as calculated and recorded under the accounting guidance, could have been affected.

We based the expected life assumption on historical experience as well as the terms and vesting periods of the options granted. For purposes of determining expected share price volatility, we considered a rolling average of historical volatility measured over a period approximately equal to the expected option term. The risk-free interest rate for periods that coincide with the expected life of the options is based on the U.S. Treasury Department yield curve in effect at the time of grant.

4. Restructuring

During the three months ended March 30, 2013 and the year ended December 31, 2012, we initiated certain business restructuring initiatives aimed at reducing our fixed cost structure and realigning our business. The 2013 initiatives included the reduction in hourly and salaried headcount of approximately 400 employees, which included 100 in Water & Fluid Solutions, 100 in Valves & Controls and 200 in Technical Solutions. The 2012 initiatives included the reduction in hourly and salaried headcount of approximately 1,000 employees, which included 500 in Water & Fluid Solutions, 300 in Valves & Controls and 200 in Technical Solutions.

9

Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

Restructuring related costs included in Selling, general and administrative expenses in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) included costs for severance and other restructuring costs as follows:

	Three months ended
In millions	March 30,     2013		March 31,     2012
Severance and related costs	$	20	$	—
Other		2		—
Total restructuring costs	$	22	$	—

Total restructuring costs related to Water & Fluid Solutions, Valves & Controls and Technical Solutions were $7 million, $5 million and $10 million, respectively, for the three months ended March 30, 2013.

Activity in the restructuring accrual recorded in Other current liabilities and Employee compensation and benefits in the Condensed Consolidated Balance Sheets is summarized as follows for the three months ended March 30, 2013:

In millions	March 30,     2013
Beginning balance	$	57
Costs incurred		20
Cash payments and other		(18)
Ending balance	$	59

5. Earnings Per Share

Basic and diluted earnings per share were calculated as follows:

	Three months ended
In millions, except per-share data	March 30,     2013		March 31,     2012
Net income attributable to Pentair Ltd.	$	52	$	62
Weighted average common shares outstanding
Basic		204.8		98.6
Dilutive impact of stock options and restricted stock units (1)		3.4		1.8
Diluted		208.2		100.4
Earnings per common share attributable to Pentair Ltd.
Basic earnings per common share	$	0.25	$	0.63
Diluted earnings per common share	$	0.25	$	0.62
Anti-dilutive stock options and restricted stock units (2)		1.0		2.5

(1) The incremental share impact from stock options and restricted stock units was computed using the treasury stock method.

(2) Stock options and restricted stock units that were not dilutive were excluded from our calculation of diluted weighted average shares.

10

Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

6. Supplemental Balance Sheet Information

In millions	March 30,     2013		December 31,     2012
Inventories
Raw materials and supplies	$	616	$	616
Work-in-process		190		208
Finished goods		521		555
Total inventories	$	1,327	$	1,379
Other current assets
Cost in excess of billings	$	138	$	124
Prepaid expenses		100		95
Deferred income taxes		79		71
Other current assets		27		34
Total other current assets	$	344	$	324
Property, plant and equipment, net
Land and land improvements	$	247	$	248
Buildings and leasehold improvements		474		482
Machinery and equipment		1,087		1,091
Construction in progress		131		114
Total property, plant and equipment		1,939		1,935
Accumulated depreciation and amortization		717		711
Total property, plant and equipment, net	$	1,222	$	1,224
Other non-current assets
Asbestos-related insurance receivable	$	157	$	157
Deferred income taxes		100		89
Other non-current assets		226		241
Total other non-current assets	$	483	$	487
Other current liabilities
Deferred revenue and customer deposits	$	133	$	127
Dividends payable		47		95
Billings in excess of cost		66		61
Accrued warranty		53		54
Other current liabilities		334		335
Total other current liabilities	$	633	$	672
Other non-current liabilities
Asbestos-related liabilities	$	234	$	235
Taxes payable		50		49
Other non-current liabilities		168		153
Total other non-current liabilities	$	452	$	437

11

Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

7. Goodwill and Other Identifiable Intangible Assets

The changes in the carrying amount of goodwill by segment were as follows:

In millions	December 31, 2012		Acquisitions/ divestitures			Foreign currency  translation/other			March 30, 2013
Water & Fluid Solutions	$	2,410	$	—		$	(21	)	$	2,389
Valves & Controls		1,334		—			—			1,334
Technical Solutions		1,151		(5	)		(2	)		1,144
Total goodwill	$	4,895	$	(5	)	$	(23	)	$	4,867

Identifiable intangible assets consisted of the following:

	March 30, 2013						December 31, 2012
In millions	Cost		Accumulated amortization		Net		Cost		Accumulated amortization		Net
Finite-life intangibles
Customer relationships	$	1,269	$	(172)	$	1,097	$	1,277	$	(153)	$	1,124
Trade names		2		(1)		1		1		—		1
Proprietary technology		262		(63)		199		264		(58)		206
Backlog		41		(31)		10		41		(18)		23
Total finite-life intangibles	$	1,574	$	(267)	$	1,307	$	1,583	$	(229)	$	1,354
Indefinite-life intangibles
Trade names		552		—		552		556		—		556
Total intangibles, net	$	2,126	$	(267)	$	1,859	$	2,139	$	(229)	$	1,910

Intangible asset amortization expense was approximately $42 million and $10 million for the three months ended March 30, 2013 and March 31, 2012, respectively.

In the fourth quarter of 2012, we recorded an impairment charge for trade name intangible assets of $49 million and $12 million in Water & Fluid Solutions and Technical Solutions, respectively.

Estimated future amortization expense for identifiable intangible assets during the remainder of 2013 and the next five years is as follows:

	Q2-Q4
In millions	2013		2014		2015		2016		2017		2018
Estimated amortization expense	$	93	$	114	$	113	$	112	$	111	$	108

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Notes to condensed consolidated financial statements (unaudited)

8. Debt

Debt and the average interest rates on debt outstanding were as follows:

In millions	Average interest rate at March 30, 2013	Maturity Year	March 30, 2013			December 31, 2012
Commercial paper	0.577%	2017	$	527		$	425
Revolving credit facilities	1.296%	2017		37			—
Senior notes - fixed rate	1.350%	2015		350			350
Senior notes - fixed rate	1.875%	2017		350			350
Senior notes - fixed rate	2.650%	2019		250			250
Senior notes - fixed rate	5.000%	2021		500			500
Senior notes - fixed rate	3.150%	2022		550			550
Other	0.697%	2014-2030		12			8
Capital lease obligations	4.267%	2015-2025		22			24
Total debt				2,598			2,457
Less: Current maturities and short-term borrowings				(6	)		(3)
Long-term debt			$	2,592		$	2,454

The 1.35% Senior Notes due 2015, 1.875% Senior Notes due 2017, 2.65% Senior Notes due 2019, 5.00% Senior Notes due 2021 and 3.15% Senior Notes due 2022 (collectively, the “Notes”) were all issued in transactions exempt from the registration requirements of the Securities Act of 1933, as amended. In March 2013, Pentair Ltd. and our 100 percent-owned subsidiary, Pentair Finance S.A. (“PFSA”), filed a Registration Statement with the SEC offering to exchange the Notes for new, registered Notes. The exchange offer expired on April 19, 2013 and did not impact the aggregate principle amount of the Notes outstanding. The new, registered Notes issued in such exchange offer are guaranteed as to payment by Pentair Ltd.

In September 2012, Pentair, Inc. entered into a credit agreement providing for an unsecured, committed revolving credit facility (the “Credit Facility”) with initial maximum aggregate availability of up to $1,450 million. PFSA is authorized to sell short-term commercial paper notes to the extent availability exists under the Credit Facility. PFSA uses the Credit Facility as back-up liquidity to support 100% of commercial paper outstanding. As of March 30, 2013 and December 31, 2012, we had $527 million and $425 million, respectively, of commercial paper outstanding, all of which was classified as long-term as we have the intent and the ability to refinance such obligations on a long-term basis under the Credit Facility.

Total availability under the Credit Facility was $886 million as of March 30, 2013, which was not limited by any covenants contained in the Credit Facility’s credit agreement.

Our debt agreements contain certain financial covenants, the most restrictive of which are in the Credit Facility, including that we may not permit (i) the ratio of our consolidated debt plus synthetic lease obligations to our consolidated net income (excluding, among other things, non-cash gains and losses) before interest, taxes, depreciation, amortization, non-cash share-based compensation expense, and up to $40 million of costs and expenses incurred in connection with the Merger (“EBITDA”) for the four consecutive fiscal quarters then ended (the “Leverage Ratio”) to exceed 3.50 to 1.00 on the last day of each fiscal quarter, and (ii) the ratio of our EBITDA for the four consecutive fiscal quarters then ended to our consolidated interest expense, including consolidated yield or discount accrued as to outstanding securitization obligations (if any), for the same period to be less than 3.00 to 1.00 as of the end of each fiscal quarter. For purposes of the Leverage Ratio, the Credit Facility provides for the calculation of EBITDA giving pro forma effect to the Merger and certain acquisitions, divestitures and liquidations during the period to which such calculation relates. As of March 30, 2013, we were in compliance with all financial covenants in our debt agreements.

In addition to the Credit Facility, we have various other credit facilities with an aggregate availability of $88 million, of which $3 million was outstanding at March 30, 2013. Borrowings under these credit facilities bear interest at variable rates.

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Notes to condensed consolidated financial statements (unaudited)

Debt outstanding at March 30, 2013 matures on a calendar year basis as follows:

	Q2 - Q4
In millions	2013		2014		2015		2016		2017		2018		Thereafter		Total
Contractual debt obligation maturities	$	3	$	—	$	350	$	—	$	917	$	—	$	1,306	$	2,576
Capital lease obligations		3		3		6		1		1		1		7		22
Total maturities	$	6	$	3	$	356	$	1	$	918	$	1	$	1,313	$	2,598

Capital lease obligations relate primarily to land and buildings and consist of total future minimum lease payments of $24 million less the imputed interest of $2 million as of March 30, 2013.

As of March 30, 2013 and December 31, 2012, assets under capital lease were $39 million and $36 million, respectively, less accumulated amortization of $6 million and $6 million, respectively, all of which were included in Property, plant and equipment, net on the Condensed Consolidated Balance Sheets.

9. Derivatives and Financial Instruments

Derivative financial instruments

We are exposed to market risk related to changes in foreign currency exchange rates and interest rates on our floating rate indebtedness. To manage the volatility related to these exposures, we periodically enter into a variety of derivative financial instruments. Our objective is to reduce, where it is deemed appropriate to do so, fluctuations in earnings and cash flows associated with changes in foreign currency rates and interest rates. The derivative contracts contain credit risk to the extent that our bank counterparties may be unable to meet the terms of the agreements. The amount of such credit risk is generally limited to the unrealized gains, if any, in such contracts. Such risk is minimized by limiting those counterparties to major financial institutions of high credit quality.

Interest rate swaps

During 2012, we used floating to fixed rate interest rate swaps to mitigate our exposure to future changes in interest rates related to our floating rate indebtedness. We designated these interest rate swap arrangements as cash flow hedges. As a result, changes in the fair value of the interest rate swaps were recorded in AOCI on the Condensed Consolidated Balance Sheets throughout the contractual term of each of the interest rate swap arrangements. During 2012, all of our interest rate swaps expired or were terminated and, as a result, we had no outstanding interest rate swap arrangements at December 31, 2012 or March 30, 2013.

Derivative gains and losses included in AOCI were reclassified into earnings at the time the related interest expense was recognized or the settlement of the related commitment occurred. Interest expense from swaps was $2 million for the three months ended March 31, 2012 and was recorded in Net interest expense in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss).

In April 2011, as part of our planned debt issuance to fund the Clean Process Technologies (“CPT”) acquisition, we entered into interest rate swap contracts to hedge movement in interest rates through the expected date of closing for a portion of the expected fixed rate debt offering. The swaps had a notional amount of $400 million with an average interest rate of 3.65%. In May 2011, upon the sale of the 2021 Notes, the swaps were terminated at a cost of $11 million. Because we used the contracts to hedge future interest payments, this was recorded in AOCI in the Condensed Consolidated Balance Sheets and will be amortized as interest expense over the 10 year life of the 2021 Notes. The ending unrealized net loss in AOCI was $9 million at March 30, 2013 and December 31, 2012.

Foreign currency contracts

We conduct business in various locations throughout the world and are subject to market risk due to changes in the value of foreign currencies in relation to our reporting currency, the U.S. dollar. We manage our economic and transaction exposure to certain market-based risks through the use of foreign currency derivative financial instruments. Our objective in holding these derivatives is to reduce the volatility of net earnings and cash flows associated with changes in foreign currency exchange rates. The majority of our foreign currency contracts have an original maturity date of less than one year. At March 30, 2013 and December 31, 2012, we had outstanding foreign currency derivative contracts with gross notional U.S. dollar equivalent amounts of $175 million and $164 million, respectively. The impact of these contracts on the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) is not material for any period presented.

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Notes to condensed consolidated financial statements (unaudited)

Gains or losses on foreign currency contracts designated as hedges are reclassified out of AOCI and into Selling, general and administrative expense in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) upon settlement. Such reclassifications during the first quarter of 2013 were not material.

Fair value measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities measured at fair value are classified using the following hierarchy, which is based upon the transparency of inputs to the valuation as of the measurement date:

Level 1:	Valuation is based on observable inputs such as quoted market prices (unadjusted) for identical assets or liabilities in active markets.
Level 2:	Valuation is based on inputs such as quoted market prices for similar assets or liabilities in active markets or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
Level 3:	Valuation is based upon other unobservable inputs that are significant to the fair value measurement.

In making fair value measurements, observable market data must be used when available. When inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement.

Fair value of financial instruments

The recorded amounts and estimated fair values of total debt, excluding the effects of derivative financial instruments, were as follows:

	March 30, 2013				December 31, 2012
In millions	Recorded Amount		Fair Value		Recorded Amount		Fair Value
Variable rate debt	$	570	$	570	$	428	$	428
Fixed rate debt		2,028		2,067		2,029		2,081
Total debt	$	2,598	$	2,637	$	2,457	$	2,509

The following methods were used to estimate the fair values of each class of financial instrument measured on a recurring basis:

• short-term financial instruments (cash and cash equivalents, accounts and notes receivable, accounts and notes payable and variable-rate debt) — recorded amount approximates fair value because of the short maturity period;

• long-term fixed-rate debt, including current maturities — fair value is based on market quotes available for issuance of debt with similar terms, which are inputs that are classified as Level 2 in the valuation hierarchy defined by the accounting guidance; and

• interest rate swaps and foreign currency contract agreements — fair values are determined through the use of models that consider various assumptions, including time value, yield curves, as well as other relevant economic measures, which are inputs that are classified as Level 2 in the valuation hierarchy defined by the accounting guidance.

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Notes to condensed consolidated financial statements (unaudited)

Financial assets and liabilities measured at fair value on a recurring basis were as follows:

	March 30, 2013
In millions	Level 1		Level 2			Level 3		Total
Recurring fair value measurements
Foreign currency contract assets	$	—	$	3		$	—	$	3
Foreign currency contract liabilities		—		(1	)		—		(1	)
Deferred compensation plan (1)		28		—			—		28
Total recurring fair value measurements		28		2			—		30
	December 31, 2012
In millions	Level 1		Level 2			Level 3		Total
Recurring fair value measurements
Foreign currency contract assets	$	—	$	3		$	—	$	3
Foreign currency contract liabilities		—		(1	)		—		(1	)
Deferred compensation plan (1)		23		—			—		23
Total recurring fair value measurements	$	23	$	2		$	—	$	25
Nonrecurring fair value measurements
Trade name intangibles (2)	$	—	$	—		$	64	$	64
Total nonrecurring fair value measurement	$	—	$	—		$	64	$	64

(1) Deferred compensation plan assets include mutual funds and cash equivalents for payment of certain non-qualified benefits for retired, terminated and active employees. The fair value of these assets was based on quoted market prices in active markets.

(2) In the fourth quarter of 2012, we completed our annual intangible assets impairment review. As a result, we recorded a pre-tax non-cash impairment charge of $61 million for trade names intangibles. The fair value of trade names is measured using the relief-from-royalty method. This method assumes the trade name has value to the extent that the owner is relieved of the obligation to pay royalties for the benefits received from them. This method requires us to estimate the future revenue for the related brands, the appropriate royalty rate and the weighted average cost of capital.

10. Income Taxes

The provision for income taxes consists of provisions for Swiss federal and international income taxes. We operate in an international environment with operations in various locations outside Switzerland. Accordingly, the consolidated income tax rate is a composite rate reflecting the earnings in the various locations and the applicable rates.

The effective income tax rate for the three months ended March 30, 2013 was 28.4% compared to 13.7% for the three months ended March 31, 2012. Our effective tax rate was higher due to the favorable resolution of U.S. federal and state tax audits during the three months ended March 31, 2012 which was not recurring during the three months ended March 30, 2013, and the timing of losses in jurisdictions where we recognize no tax benefits. The increases were partially offset by the mix of global earnings, including the impact of the Merger.

We continue to actively pursue initiatives to reduce our effective tax rate. The tax rate in any quarter can be affected positively or negatively by adjustments that are required to be reported in the specific quarter of resolution.

The liability for uncertain tax positions was $55 million and $54 million at March 30, 2013 and December 31, 2012, respectively. We record penalties and interest related to unrecognized tax benefits in Provision for income taxes and Net interest expense, respectively, on the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss), which is consistent with our past practices.

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Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

Tax sharing agreement and other income tax matters

In connection with the Distribution, we entered into a tax sharing agreement (the “2012 Tax Sharing Agreement”) with Tyco and The ADT Corporation (“ADT”), which governs the rights and obligations of Tyco, ADT and us for certain pre-Distribution tax liabilities, including Tyco’s obligations under a separate tax sharing agreement (the “2007 Tax Sharing Agreement”) that Tyco, Covidien Ltd. (“Covidien”) and TE Connectivity Ltd. (“TE Connectivity”) entered into in 2007. The 2012 Tax Sharing Agreement provides that we, Tyco and ADT will share (i) certain pre-Distribution income tax liabilities that arise from adjustments made by tax authorities to our, Tyco’s and ADT’s U.S. income tax returns, and (ii) payments required to be made by Tyco in respect to the 2007 Tax Sharing Agreement (collectively, “Shared Tax Liabilities”). Tyco is responsible for the first $500 million of Shared Tax Liabilities. We and ADT will share 42% and 58%, respectively, of the next $225 million of Shared Tax Liabilities. We, ADT and Tyco will share 20%, 27.5% and 52.5%, respectively, of Shared Tax Liabilities above $725 million.

In the event the Distribution, the spin-off of ADT, or certain internal transactions undertaken in connection therewith were determined to be taxable as a result of actions taken after the Distribution by us, ADT or Tyco, the party responsible for such failure would be responsible for all taxes imposed on us, ADT or Tyco as a result thereof. Taxes resulting from the determination that the Distribution, the spin-off of ADT, or any internal transaction is taxable are referred to herein as “Distribution Taxes.” If such failure is not the result of actions taken after the Distribution by us, ADT or Tyco, then we, ADT and Tyco would be responsible for any Distribution Taxes imposed on us, ADT or Tyco as a result of such determination in the same manner and in the same proportions as the Shared Tax Liabilities. ADT will have sole responsibility for any income tax liability arising as a result of Tyco’s acquisition of Brink’s Home Security Holdings, Inc. (“BHS”) in May 2010, including any liability of BHS under the tax sharing agreement between BHS and The Brink’s Company dated October 31, 2008 (collectively, the “BHS Tax Liabilities”). Costs and expenses associated with the management of Shared Tax Liabilities, Distribution Taxes and BHS Tax Liabilities will generally be shared 20% by us, 27.5% by ADT and 52.5% by Tyco. We are responsible for all of our own taxes that are not shared pursuant to the 2012 Tax Sharing Agreement’s sharing formulae. In addition, Tyco and ADT are responsible for their tax liabilities that are not subject to the 2012 Tax Sharing Agreement’s sharing formulae.

The 2012 Tax Sharing Agreement also provides that, if any party were to default in its obligation to another party to pay its share of the distribution taxes that arise as a result of no party’s fault, each non-defaulting party would be required to pay, equally with any other non-defaulting party, the amounts in default. In addition, if another party to the 2012 Tax Sharing Agreement that is responsible for all or a portion of an income tax liability were to default in its payment of such liability to a taxing authority, we could be legally liable under applicable tax law for such liabilities and required to make additional tax payments. Accordingly, under certain circumstances, we may be obligated to pay amounts in excess of our agreed-upon share of our, Tyco’s and ADT’s tax liabilities.

With respect to years prior to and including the 2007 separation of Covidien and TE Connectivity by Tyco, tax authorities have raised issues and proposed tax adjustments that are generally subject to the sharing provisions of the 2007 Tax Sharing Agreement and which may require Tyco to make a payment to a taxing authority, Covidien or TE Connectivity. With respect to adjustments raised by the IRS, although Tyco has resolved a substantial number of these adjustments, a few significant items remain open with respect to the audit of the 1997 through 2004 years. As of the date hereof, it is unlikely that Tyco will be able to resolve all the open items, which primarily involve the treatment of certain intercompany debt issued during the period, through the IRS appeals process. As a result, Tyco expects to litigate these matters once it receives the requisite statutory notices from the IRS, which may occur as soon as within the next three months. However, the ultimate resolution of these matters is uncertain and could result in Tyco being responsible for a greater amount than it expects under the 2007 Tax Sharing Agreement. To the extent we are responsible for any Shared Tax Liability or Distribution Tax, there could be a material adverse impact on our financial condition, results of operations, or cash flows in future reporting periods.

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Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

11. Benefit Plans

Components of net periodic benefit cost for our pension plans for the three months ended March 30, 2013 and March 31, 2012 were as follows:

	Three months ended
	U.S. pension plans						Non-U.S. pension plans
In millions	March 30, 2013			March 31, 2012			March 30, 2013			March 31, 2012
Service cost	$	4		$	3		$	2		$	1
Interest cost		3			7			5			1
Expected return on plan assets		(2	)		(7	)		(4	)		—
Net periodic benefit cost	$	5		$	3		$	3		$	2

Components of net periodic benefit cost for our other post-retirement plans for the three months ended March 30, 2013 and March 31, 2012 were not material.

12. Shareholders’ Equity

Share repurchases

Prior to the closing of the Merger, our board of directors, and Tyco as our sole shareholder, authorized the repurchase of our common shares with a maximum aggregate value of $400 million following the closing of the Merger. This authorization does not have an expiration date. On October 1, 2012, our board of directors authorized the repurchase of our common shares with a maximum aggregate value of $800 million. This authorization expires on December 31, 2015 and is in addition to the $400 million share repurchase authorization. As of March 30, 2013, we had $726 million remaining available for share repurchases under these authorizations. During the quarter ended March 30, 2013, we repurchased 2.7 million of our common shares for $140 million pursuant to these authorizations.

Dividends payable

Prior to the consummation of the Merger, our board of directors proposed, and Tyco as our then sole shareholder, authorized us to pay quarterly cash dividends through the first annual general meeting of our shareholders in 2013. The authorization provided that dividends of $0.68 per share will be made out of our Capital contribution reserve equity position in our statutory accounts to our shareholders in quarterly installments of $0.22 for the fourth quarter of 2012 and $0.23 for each of the first and second quarters of 2013. The balance of dividends payable included in Other current liabilities on our Consolidated Balance Sheets was $47 million at March 30, 2013.

On February 26, 2013, our board of directors recommended that our shareholders approve at our 2013 annual meeting of shareholders a proposal to pay quarterly cash dividends through the second quarter of 2014. The proposal provides that dividends of $1.00 per share will be made out of our Capital contribution reserve equity position in our statutory accounts to our shareholders in quarterly installments of $0.25 for each of the third and fourth quarters of 2013 and first and second quarters of 2014.

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Notes to condensed consolidated financial statements (unaudited)

13. Segment information

Financial information by reportable segment is shown below:

	Three months ended
In millions	March 30, 2013			March 31, 2012
Net sales
Water & Fluid Solutions	$	782		$	587
Valves & Controls		586			—
Technical Solutions		410			273
Other		(4	)		(2)
Consolidated	$	1,774		$	858
Operating income (loss)
Water & Fluid Solutions	$	75		$	64
Valves & Controls		(19	)		—
Technical Solutions		53			50
Other		(35	)		(28)
Consolidated	$	74		$	86

14. Commitments and Contingencies

Asbestos Matters

Our subsidiaries and numerous other companies are named as defendants in personal injury lawsuits based on alleged exposure to asbestos-containing materials. These cases typically involve product liability claims based primarily on allegations of manufacture, sale or distribution of industrial products that either contained asbestos or were attached to or used with asbestos-containing components manufactured by third-parties. Each case typically names between dozens to hundreds of corporate defendants. While we have observed an increase in the number of these lawsuits over the past several years, including lawsuits by plaintiffs with mesothelioma-related claims, a large percentage of these suits have not presented viable legal claims and, as a result, have been dismissed by the courts. Our historical strategy has been to mount a vigorous defense aimed at having unsubstantiated suits dismissed, and, where appropriate, settling suits before trial. Although a large percentage of litigated suits have been dismissed, we cannot predict the extent to which we will be successful in resolving lawsuits in the future.

As of March 30, 2013, there were approximately 1,900 lawsuits pending against our subsidiaries. A lawsuit might include several claims, and we have approximately 2,300 claims outstanding as of March 30, 2013. This amount is not adjusted for claims that are not actively being prosecuted, identified incorrect defendants, or duplicated other actions, which would ultimately reflect our current estimate of the number of viable claims made against us, our affiliates, or entities for which we assumed responsibility in connection with acquisitions or divestitures. In addition, the amount does not include certain claims pending against third parties for which we have provided an indemnification.

Periodically, we perform an analysis with the assistance of outside counsel and other experts to update our estimated asbestos-related assets and liabilities. Our estimate of the liability and corresponding insurance recovery for pending and future claims and defense costs is based on our historical claim experience and estimates of the number and resolution cost of potential future claims that may be filed. Our legal strategy for resolving claims also impacts these estimates.

Our estimate of asbestos-related insurance recoveries represents estimated amounts due to us for previously paid and settled claims and the probable reimbursements relating to our estimated liability for pending and future claims. In determining the amount of insurance recoverable, we consider a number of factors, including available insurance, allocation methodologies and the solvency and creditworthiness of insurers.

Our estimated liability for asbestos-related claims was $234 million and $235 million as of March 30, 2013 and December 31, 2012, respectively, and was recorded in Other non-current liabilities in the Condensed Consolidated Balance Sheets for pending and future claims and related defense costs. Our estimated receivable for insurance recoveries was $157 million as of March 30, 2013 and December 31, 2012 and was recorded in Other non-current assets in the Condensed Consolidated Balance Sheets.

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Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

The amounts recorded by us for asbestos-related liabilities and insurance-related assets are based on our strategies for resolving our asbestos claims and currently available information as well as estimates and assumptions. Key variables and assumptions include the number and type of new claims filed each year, the average cost of resolution of claims, the resolution of coverage issues with insurance carriers, the amounts of insurance and the related solvency risk with respect to our insurance carriers, and the indemnifications we have provided to third parties. Furthermore, predictions with respect to these variables are subject to greater uncertainty in the latter portion of the projection period. Other factors that may affect our liability and cash payments for asbestos-related matters include uncertainties surrounding the litigation process from jurisdiction to jurisdiction and from case to case, reforms of state or federal tort legislation and the applicability of insurance policies among subsidiaries. As a result, actual liabilities or insurance recoveries could be significantly higher or lower than those recorded if assumptions used in our calculations vary significantly from actual results.

Environmental Matters

We are involved in or have retained responsibility and potential liability for environmental obligations and legal proceedings related to our current business and, including pursuant to certain indemnification obligations, related to certain formerly owned businesses. Our accruals for environmental matters are recorded on a site-by-site basis when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, based on current law and existing technologies. Based upon our experience, current information regarding known contingencies and applicable laws, we have recorded reserves for these environmental matters of $36 million as of March 30, 2013 and December 31, 2012. We do not anticipate these environmental conditions will have a material adverse effect on our financial position, results of operations or cash flows.

Warranties and guarantees

In connection with the disposition of our businesses or product lines, we may agree to indemnify purchasers for various potential liabilities relating to the sold business, such as pre-closing tax, product liability, warranty, environmental, or other obligations. The subject matter, amounts and duration of any such indemnification obligations vary for each type of liability indemnified and may vary widely from transaction to transaction. Generally, the maximum obligation under such indemnifications is not explicitly stated and as a result, the overall amount of these obligations cannot be reasonably estimated. Historically, we have not made significant payments for these indemnifications. We believe that if we were to incur a loss in any of these matters, the loss would not have a material effect on our financial condition or results of operations.

We recognize, at the inception of a guarantee, a liability for the fair value of the obligation undertaken in issuing the guarantee.

We provide service and warranty policies on our products. Liability under service and warranty policies is based upon a review of historical warranty and service claim experience. Adjustments are made to accruals as claim data and historical experience warrant.

The changes in the carrying amount of service and product warranties for the three months ended March 30, 2013 were as follows:

In millions	March 30, 2013
Beginning balance	$	54
Service and product warranty provision		12
Payments		(13	)
Ending balance	$	53

Stand-by Letters of Credit, Bank Guarantees and Bonds

In certain situations, Tyco guaranteed Flow Control’s performance to third parties or provided financial guarantees for financial commitments of Flow Control. In situations where Flow Control and Tyco were unable to obtain a release from these guarantees in connection with the spin-off, we will indemnify Tyco for any losses it suffers as a result of such guarantees.

In disposing of assets or businesses, we often provide representations, warranties and indemnities to cover various risks including unknown damage to the assets, environmental risks involved in the sale of real estate, liability to investigate and remediate environmental contamination at waste disposal sites and manufacturing facilities and unidentified tax liabilities and legal fees related to periods prior to disposition. We do not have the ability to reasonably estimate the potential liability due to the inchoate and unknown nature of these potential liabilities. However, we have no reason to believe that these uncertainties would have a material adverse effect on our financial position, results of operations or cash flows.

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Notes to condensed consolidated financial statements (unaudited)

In the ordinary course of business, we are required to commit to bonds, letters of credit and bank guarantees that require payments to our customers for any non-performance. The outstanding face value of these instruments fluctuates with the value of our projects in process and in our backlog. In addition, we issue financial stand-by letters of credit primarily to secure our performance to third parties under self-insurance programs.

As of March 30, 2013 and December 31, 2012, the outstanding value of bonds, letters of credit and bank guarantees totaled $514 million and $493 million, respectively.

15. Financial Statements of Parent Company Guarantor

Pentair Ltd. (the “Parent Company Guarantor”), fully and unconditionally, guarantees the Notes of Pentair Finance S.A. (the “Subsidiary Issuer”). The Subsidiary Issuer is a Luxembourg public limited liability company formed in January 2012 and 100 percent-owned subsidiary of the Parent Company Guarantor.

The following supplemental financial information sets forth the financial information of:

• Parent Company Guarantor;

• Subsidiary Issuer;

• Non-guarantor subsidiaries of Pentair Ltd. on a combined basis;

• Consolidating entries and eliminations representing adjustments to:

a. eliminate intercompany transactions between or among the Parent Company Guarantor, the Subsidiary Issuer and the non-guarantor subsidiaries;

b. eliminate the investments in subsidiaries; and

c. record consolidating entries.

• Pentair Ltd. and subsidiaries on a consolidated basis.

The following present the Company’s Condensed Consolidating Statement of Operations and Comprehensive Income (Loss), Condensed Consolidating Balance Sheets and Condensed Consolidating Statement of Cash Flows. Since the Parent Company Guarantor and the Subsidiary Issuer were acquired in the Merger, there was no guarantee of the Notes in effect in prior periods. The historical consolidated financial statements of Pentair Ltd. prior to the Merger include all non-guarantor subsidiaries. Consequently, no consolidating financial information for the three months ended March 31, 2012 is presented.

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Notes to condensed consolidated financial statements (unaudited)

Pentair Ltd. and Subsidiaries

Condensed Consolidating Statement of Operations and Comprehensive Income (Loss)

Three months ended March 30, 2013

In millions	Parent Company Guarantor			Subsidiary Issuer			Non-guarantor Subsidiaries			Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Net sales	$	—		$	—		$	1,774		$	—		$	1,774
Cost of goods sold		—			—			1,250			—			1,250
Gross profit		—			—			524			—			524
Selling, general and administrative		(1	)		3			414			—			416
Research and development		—			—			34			—			34
Operating (loss) income		1			(3	)		76			—			74
Loss (earnings) from investment in subsidiaries		(51	)		(55	)		—			106			—
Other (income) expense:
Gain on sale of business		—			—			(17	)		—			(17)
Net interest expense		—			3			14			—			17
Income (loss) from continuing operations before income taxes and noncontrolling interest		52			49			79			(106	)		74
Provision for income taxes		—			—			21			—			21
Net income (loss) before noncontrolling interest		52			49			58			(106	)		53
Noncontrolling interest		—			—			1			—			1
Net income (loss) attributable to Pentair Ltd.	$	52			49		$	57		$	(106	)	$	52
Comprehensive income (loss), net of tax
Net income (loss) before noncontrolling interest	$	52		$	49		$	58		$	(106	)	$	53
Changes in cumulative translation adjustment		(76	)		(76	)		(76	)		152			(76)
Changes in market value of derivative financial instruments		1			1			1			(2	)		1
Total comprehensive income (loss)		(23	)		(26	)		(17	)		44			(22)
Less: Comprehensive income attributable to noncontrolling interest		—			—			1			—			1
Comprehensive income (loss) attributable to Pentair Ltd.	$	(23	)	$	(26	)	$	(18	)	$	44		$	(23	)

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Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

Pentair Ltd. and Subsidiaries

Condensed Consolidating Balance Sheet

March 30, 2013

In millions	Parent Company Guarantor		Subsidiary Issuer		Non-guarantor Subsidiaries		Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Assets
Current assets
Cash and cash equivalents	$	—	$	—	$	215	$	—		$	215
Accounts and notes receivable, net		18		10		1,507		(131	)		1,404
Inventories		—		—		1,327		—			1,327
Other current assets		1		—		343		—			344
Total current assets		19		10		3,392		(131	)		3,290
Property, plant and equipment, net		—		—		1,222		—			1,222
Other assets
Investments in subsidiaries		6,356		7,469		—		(13,825	)		—
Goodwill		—		—		4,867		—			4,867
Intangibles, net		—		—		1,859		—			1,859
Other non-current assets		31		1,551		475		(1,574	)		483
Total other assets		6,387		9,020		7,201		(15,399	)		7,209
Total assets	$	6,406	$	9,030	$	11,815	$	(15,530	)	$	11,721
Liabilities and Equity
Current liabilities
Current maturities of long-term debt and short-term borrowings	$	—		—		6		—		$	6
Accounts payable		99		4		598		(121	)		580
Employee compensation and benefits		—		—		264		—			264
Other current liabilities		48		14		571		—			633
Total current liabilities		147		18		1,439		(121	)		1,483
Other liabilities
Long-term debt		—		2,400		1,745		(1,553	)		2,592
Pension and other post-retirement compensation and benefits		—		—		370		—			370
Deferred tax liabilities		—		—		481		—			481
Other non-current liabilities		31		—		452		(31	)		452
Total liabilities		178		2,418		4,487		(1,705	)		5,378
Equity
Shareholders’ equity attributable to Pentair Ltd. and subsidiaries		6,228		6,612		7,213		(13,825	)		6,228
Noncontrolling interest		—		—		115		—			115
Total equity		6,228		6,612		7,328		(13,825	)		6,343
Total liabilities and equity	$	6,406	$	9,030	$	11,815	$	(15,530	)	$	11,721

23

Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

Pentair Ltd. and Subsidiaries

Condensed Consolidating Statement of Cash Flows

Three months ended March 30, 2013

In millions	Parent Company Guarantor			Subsidiary Issuer			Non-guarantor Subsidiaries			Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Operating activities
Net cash provided by (used for) operating activities	$	95		$	51		$	(20	)	$	(106	)	$	20
Investing activities
Capital expenditures		—			—			(50	)		—			(50)
Proceeds from sale of property and equipment		—			—			1			—			1
Proceeds from sale of business, net		—			—			30			—			30
Net cash provided by (used for) investing activities		—			—			(19	)		—			(19	)
Financing activities
Net receipts of short-term borrowings		—			—			3			—			3
Net receipts of commercial paper and revolving long-term debt		—			103			37			—			140
Repayment of long-term debt		—			—			(2	)		—			(2)
Debt issuance costs		—			(1	)		—			—			(1)
Net change in advances to subsidiaries		(48	)		(153	)		95			106			—
Shares issued to employees, net of shares withheld		—			—			11			—			11
Repurchases of common shares		—			—			(140	)		—			(140)
Dividends paid		(47	)		—			—			—			(47)
Distributions to noncontrolling interest		—			—			(2	)		—			(2)
Net cash provided by (used for) financing activities		(95	)		(51	)		2			106			(38)
Effect of exchange rate changes on cash and cash equivalents		—			—			(9	)		—			(9)
Change in cash and cash equivalents		—			—			(46	)		—			(46)
Cash and cash equivalents, beginning of period		—			—			261			—			261
Cash and cash equivalents, end of period	$	—		$	—		$	215		$	—		$	215

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Pentair Ltd. and Subsidiaries

Notes to condensed consolidated financial statements (unaudited)

Pentair Ltd. and Subsidiaries

Condensed Consolidating Balance Sheet

December 31, 2012

In millions	Parent Company Guarantor		Subsidiary Issuer		Non-guarantor Subsidiaries		Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Assets
Current assets
Cash and cash equivalents	$	—	$	—	$	261	$	—		$	261
Accounts and notes receivable, net		20		1,459		1,351		(1,535	)		1,295
Inventories		—		—		1,379		—			1,379
Other current assets		2		—		322		—			324
Total current assets		22		1,459		3,313		(1,535	)		3,259
Property, plant and equipment, net		—		—		1,224		—			1,224
Other assets
Investments in subsidiaries		6,492		7,470		—		(13,962	)		—
Goodwill		—		—		4,895		—			4,895
Intangibles, net		—		—		1,910		—			1,910
Other non-current assets		31		6		481		(31	)		487
Total other assets		6,523		7,476		7,286		(13,993	)		7,292
Total assets	$	6,545	$	8,935	$	11,823	$	(15,528	)	$	11,775
Liabilities and Equity
Current liabilities
Current maturities of long-term debt and short-term borrowings	$	—	$	—	$	3	$	—		$	3
Accounts payable		54		2		590		(76	)		570
Employee compensation and benefits		—		—		294		—			294
Other current liabilities		97		11		564		—			672
Total current liabilities		151		13		1,451		(76	)		1,539
Other liabilities
Long-term debt		—		2,298		1,615		(1,459	)		2,454
Pension and other post-retirement compensation and benefits		—		—		378		—			378
Deferred tax liabilities		—		—		488		—			488
Other non-current liabilities		31		—		437		(31	)		437
Total liabilities		182		2,311		4,369		(1,566	)		5,296
Equity
Shareholders’ equity attributable to Pentair Ltd. and subsidiaries		6,363		6,624		7,338		(13,962	)		6,363
Noncontrolling interest		—		—		116		—			116
Total equity		6,363		6,624		7,454		(13,962	)		6,479
Total liabilities and equity	$	6,545	$	8,935	$	11,823	$	(15,528	)	$	11,775

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward-looking Statements

This report contains statements that we believe to be “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical fact are forward-looking statements. Without limitation, any statements preceded or followed by or that include the words “targets,” “plans,” “believes,” “expects,” “intends,” “will,” “likely,” “may,” “anticipates,” “estimates,” “projects,” “should,” “would,” “positioned,” “strategy,” “future” or words, phrases or terms of similar substance or the negative thereof, are forward-looking statements. These forward-looking statements are not guarantees of future performance and are subject to risks, uncertainties, assumptions and other factors, some of which are beyond our control, which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These factors include the ability to successfully integrate Pentair, Inc. and the Flow Control (as defined below) business and achieve expected benefits from the Merger (as defined below); overall global economic and business conditions; competition and pricing pressures in the markets we serve; the strength of housing and related markets; volatility in currency exchange rates and commodity prices; inability to generate savings from excellence in operations initiatives consisting of lean enterprise, supply management and cash flow practices; increased risks associated with operating foreign businesses; the ability to deliver backlog and win future project work; failure of markets to accept new product introductions and enhancements; the impact of changes in laws and regulations, including those that limit U.S. tax benefits; the outcome of litigation and governmental proceedings; and the ability to achieve our long-term strategic operating goals. Additional information concerning these and other factors is contained in our filings with the U.S. Securities and Exchange Commission (“SEC”), including in Item 1A of this Quarterly Report on Form 10-Q and our 2012 Annual Report on Form 10-K. All forward-looking statements speak only as of the date of this report. Pentair Ltd. assumes no obligation, and disclaims any obligation, to update the information contained in this report.

Overview

Pentair Ltd., formerly known as Tyco Flow Control International Ltd. (as used prior to the Merger, “Flow Control”), is a company organized under the laws of Switzerland. The terms “us,” “we” or “our” refer to Pentair Ltd. and its consolidated subsidiaries. Our business took its current form on September 28, 2012 as a result of a spin-off of Flow Control from its parent, Tyco International Ltd. (“Tyco”), and a reverse acquisition involving Pentair, Inc. Prior to the spin-off, Tyco engaged in an internal restructuring whereby it transferred to Flow Control certain assets related to the flow control business of Tyco, and Flow Control assumed from Tyco certain liabilities related to the flow control business of Tyco. On September 28, 2012 prior to the Merger, Tyco effected a spin-off of Flow Control through the pro-rata distribution of 100% of the outstanding common shares of Flow Control to Tyco’s shareholders (the “Distribution”), resulting in the distribution of 110.9 million of our common shares to Tyco’s shareholders. Immediately following the Distribution, an indirect, wholly-owned subsidiary of ours merged with and into Pentair, Inc., with Pentair, Inc. surviving as an indirect, wholly-owned subsidiary of ours (the “Merger”). The Merger was accounted for as a reverse acquisition under the purchase method of accounting with Pentair, Inc. treated as the acquirer.

Following the Merger, we are a diversified industrial manufacturing company comprising three reporting segments: Water & Fluid Solutions, Valves & Controls and Technical Solutions. We classify our continuing operations into business segments based primarily on types of products offered and markets served:

• The Water & Fluid Solutions segment designs, manufactures, markets and services innovative water management and fluid processing products and solutions. In select geographies, Water & Fluid Solutions offers a wide variety of pumps, valves and pipes for water transmission applications. The Flow Technologies, Filtration & Process, Aquatic Systems and Water & Environmental Systems global business units (“GBUs”) comprise this segment.

• The Valves & Controls segment designs, manufactures, markets, and services valves, fittings, automation and controls, and actuators and operates as a stand-alone GBU.

• The Technical Solutions segment designs, manufactures and markets products that guard and protect some of the world’s most sensitive electronics and electronic equipment, as well as heat management solutions designed to provide thermal protection to temperature sensitive fluid applications. The Equipment Protection and Thermal Management GBUs comprise this segment.

During the fourth quarter of 2012 and first quarter of 2013, Water & Fluid Solutions, Valves & Controls and Technical Solutions represented approximately 44 percent, 32 percent and 24 percent of total revenues, respectively, reflecting our post-Merger revenue mix.

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Key Trends and Uncertainties Regarding Our Existing Business

The following trends and uncertainties affected our financial performance in 2012 and the first three months of 2013 and will likely impact our results in the future:

• Since 2010, most markets we serve have shown signs of improvement since the global recession in 2008 and 2009. Because our businesses are significantly affected by general economic trends, a lack of continued improvement in our most important markets addressed below would likely have an adverse impact on our results of operations for the rest of 2013 and beyond.

• In September 2012, we completed the Merger. With an acquisition of this magnitude and complexity, there are uncertainties and risks associated with realizing the amount and timing of anticipated growth opportunities and cost and tax synergies as described in ITEM 1A – Risk Factors of our 2012 Annual Report on Form 10-K.

• We identified specific market opportunities that we continue to pursue that we find attractive, both within and outside the United States. We are reinforcing our businesses to more effectively address these opportunities through research and development and additional sales and marketing resources. Unless we successfully penetrate these product and geographic markets, our organic growth would likely be limited.

• End markets for new home building and new pool starts are showing signs of rebound from their historically low levels in 2007 - 2011. New product introductions, expanded distribution, channel penetration and a recovering housing market have resulted in volume increases for 2012 and the first quarter of 2013.

• Despite the overall strength of our end-markets, some of them have exhibited differing levels of volatility and may continue to do so over the medium and longer term. While we believe the general trends are favorable, factors specific to each of our major end-markets may affect the capital spending plans of our customers.

• Economic uncertainty in Western Europe has negatively impacted business results and may continue to do so for the foreseeable future.

• Through 2012 and the first three months of 2013, we experienced material and other cost inflation. We strive for productivity improvements, and we may implement increases in selling prices to help mitigate this inflation. We expect the current economic environment will result in continuing price volatility for many of our raw materials. Commodity prices have begun to moderate, but we are uncertain as to the timing and impact of these market changes.

• We have a long-term goal to consistently generate free cash flow that equals or exceeds 100 percent of our net income. We define free cash flow as cash flow from operating activities less capital expenditures plus proceeds from sale of property and equipment. Our free cash flow for the full year 2012 was $(21) million. The negative free cash flow resulted primarily from accelerated pension funding of $193 million, acquisition-related payments of $126 million and repositioning payments of $20 million. We continue to expect to generate free cash flow in excess of 100 percent of our net income before noncontrolling interest in 2013. We are continuing to target reductions in working capital, particularly inventory as a percentage of sales. See the discussion of “Other financial measures” under “Liquidity and Capital Resources” in this report for a reconciliation of our free cash flow.

In 2013, our operating objectives include the following:

• Increasing our presence in fast growth regions and vertical focus to grow in those markets in which we have competitive advantages;

• Optimizing our technological capabilities to increasingly generate innovative new products;

• Driving operating excellence through lean enterprise initiatives, with specific focus on sourcing and supply management, cash flow management and lean operations;

27

• Focusing on developing global talent in light of our increased global presence; and

• Integrating Pentair, Inc. and the Flow Control business.

We may seek to meet our objectives of expanding our geographic reach internationally and expanding our presence in our various channels to market by acquiring technologies and products to broaden our businesses’ capabilities to serve additional markets and through acquisitions. We may also consider the divestiture of discrete business units to further focus our businesses on our most attractive markets.

RESULTS OF OPERATIONS

Net sales

Consolidated net sales and the change from the prior year period were as follows:

	Three months ended
In millions	March 30, 2013			March 31, 2012			$ change			% change
Net sales	$	1,774		$	858		$	916			106.8	%
Net sales by segment and the changes from prior year period were as follows:
	Three months ended
In millions	March 30, 2013			March 31, 2012			$ change			% change
Water & Fluid Solutions	$	782		$	587		$	195			33.2	%
Valves & Controls		586			—			586			—
Technical Solutions		410			273			137			51.2	%
Other		(4	)		(2	)		(2	)		—
Net sales	$	1,774		$	858		$	916			106.8	%

The components of the changes in net sales from the prior period were as follows:

	Three months ended March 30, 2013 over the prior year period
Percent change in net sales	Water & Fluid Solutions			Valves & Controls		Technical Solutions			Total
Volume		7.6			—		(10.9	)		1.4
Acquisition		24.2			100.0		59.9			103.7
Price		1.6			—		2.5			1.9
Currency		(0.2	)		—		(0.3	)		(0.2	)
Total		33.2			100.0		51.2			106.8

Consolidated net sales

The 106.8 percentage point increase in consolidated net sales in the first quarter of 2013 from 2012 was primarily driven by:

• sales volume of the Flow Control businesses subsequent to the Merger of $888 million;

• organic sales growth in Water & Fluid Solutions related to higher sales of certain pool products primarily serving the North American residential housing market, and increased demand for agriculture products;

• continued growth in fast growth regions led by strength in the Middle East and Latin America; and

• selective increases in selling prices to mitigate inflationary cost increases.

These increases were partially offset by:

• lower sales volume in developed portions of Asia and Europe.

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Water & Fluid Solutions

The 33.2 percentage point increase in Water & Fluid Solutions net sales in the first quarter of 2013 from 2012 was primarily driven by:

• sales volume of the Flow Control businesses subsequent to the Merger of $142 million;

• organic sales growth in Water & Fluid Solutions related to higher sales of certain pool products primarily serving the North American residential housing market, and increased demand for agriculture products;

• continued growth in fast growth regions led by strength in the Middle East and Latin America; and

• selective increases in selling prices to mitigate inflationary cost increases.

These increases were partially offset by:

• lower sales volume in developed portions of Asia and Europe.

Valves & Controls

The Valves & Controls net sales in the first quarter of 2013 were the result of:

• sales volume of the Flow Control businesses subsequent to the Merger of $586 million.

Technical Solutions

The 51.2 percentage point increase in Technical Solutions net sales in the first quarter of 2013 from 2012 was primarily driven by:

• sales volume of the Flow Control businesses subsequent to Merger of $162 million; and

• selective increases in selling prices to mitigate inflationary cost increases.

These increases were partially offset by:

• lower sales volume in Europe impacting the Infrastructure vertical.

29

Gross profit

	Three months ended
In millions	March 30, 2013		% of sales		March 31, 2012	% of sales
Gross profit		$              524		29.5%	$            281	32.7%
Percentage point change				(3.2) pts

The 3.2 percentage point decrease in gross profit as a percentage of sales in the first quarter of 2013 from 2012 was primarily the result of:

• higher cost of goods sold in the first quarter of 2013 as a result of $77 million of inventory fair market value step-up and customer backlog recorded as part of the Merger purchase accounting; and

• inflationary increases related to raw materials and labor costs.

These decreases were partially offset by:

• higher margin percentage contribution associated with the Flow Control businesses in Valves & Controls and Technical Solutions;

• selective increases in selling prices across all business segments to mitigate inflationary cost increases; and

• savings generated from our Pentair Integrated Management System (“PIMS”) initiatives including lean and supply management practices.

Selling, general and administrative (SG&A)

	Three months ended
In millions	March 30, 2013		% of sales		March 31, 2012	% of sales
SG&A		$              416		23.4%	$            174	20.3%
Percentage point change				3.1 pts

The 3.1 percentage point increase in SG&A expense as a percentage of sales in the first quarter of 2013 from 2012 was primarily due to:

• intangible asset amortization associated with the Merger;

• higher costs related to the Merger, including integration, standardization and restructuring costs; and

• certain increases for labor and related costs.

These increases were partially offset by:

• sales volume of the Flow Control businesses subsequent to the Merger, which resulted in increased leverage on our fixed operating expenses.

Research and development (R&D)

	Three months ended
In millions	March 30, 2013		% of sales		March 31, 2012	% of sales
R&D		$                34		1.9%	$              21	2.4%
Percentage point change				(0.5) pts

The 0.5 percentage point decrease in R&D expense as a percentage of sales in the first quarter of 2013 from 2012 was primarily due to:

• sales volume of the Flow Control businesses subsequent to the Merger, which resulted in increased leverage on the R&D spend.

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Operating income - Water & Fluid Solutions

	Three months ended
In millions	March 30, 2013		% of sales		March 31, 2012	% of sales
Operating income		$                75		9.6%	$                64	10.9%
Percentage point change				(1.3) pts

The 1.3 percentage point decrease in Water & Fluid Solutions operating income as a percentage of net sales in the first quarter of 2013 from 2012 was primarily the result of:

• lower margin from higher costs related to the Merger, including integration, standardization, and restructuring costs;

• intangible asset amortization associated with the Merger;

• continued investments in future growth with emphasis on international markets, including personnel and business infrastructure investments; and

• higher cost of goods sold in the first quarter of 2013 as a result of inventory fair market value step-up and customer backlog recorded as part of the Merger purchase accounting.

These decreases were partially offset by:

• higher sales volumes in Water & Fluid Solutions, which resulted in increased leverage on operating expenses;

• selective increases in selling prices to mitigate inflationary cost increases; and

• savings generated from our PIMS initiatives including lean and supply management practices.

Operating loss - Valves & Controls

	Three months ended
In millions	March 30, 2013		% of     sales		March 31, 2012		% of sales
Operating loss		$              (19)		(3.2%)		$            —		0.0%
Percentage point change				(3.2)  pts

The operating loss for Valves & Controls for the first quarter of 2013 was the result of:

• Valves & Controls operations subsequent to the Merger. Valves & Controls is a new reporting segment effective with the Merger and, as a result, the first quarter of 2013 operating loss represents the segment’s operating results for the quarter;

• higher cost of goods sold in the first quarter of 2013 of $70 million as a result of inventory fair market value step-up and customer backlog recorded as part of the Merger purchase accounting;

• intangible asset amortization associated with the Merger; and

• lower margin from higher costs related to the Merger including integration, standardization, and restructuring costs.

Operating income - Technical Solutions

	Three months ended
In millions	March 30, 2013		% of sales		March 31, 2012		% of sales
Operating income		$                53		13.0%		$            50		18.3%
Percentage point change				(5.3) pts

31

The 5.3 percentage point decrease in Technical Solutions operating income as a percentage of sales in the first quarter of 2013 from 2012 was primarily the result of:

• lower margin from higher costs related to the Merger, including integration, standardization and restructuring costs;

• higher cost of goods sold in the first quarter of 2013 as a result of customer backlog recorded as part of the Merger purchase accounting;

• intangible asset amortization associated with the Merger;

• continued investments in future growth with emphasis on international markets, including personnel and business infrastructure investments; and

• inflationary increases related to labor costs and certain raw materials.

These decreases were partially offset by:

• selective increases in selling prices to mitigate inflationary cost increases; and

• savings generated from our PIMS initiatives including lean and supply management practices.

Gain on sale of business

During the first quarter of 2013, we sold a business that was part of Technical Solutions for cash of $30 million, net of transaction costs, resulting in a gain of $17 million. Goodwill of $5 million was included in the assets of the business sold. The sales price is subject to a working capital adjustment.

Net interest expense

	Three months ended
In millions	March 30, 2013		March 31, 2012		$ change		% change
Net interest expense	$	17	$	15	$	2		15.1%

The 15.1 percentage point increase in interest expense in the first quarter of 2013 from 2012 was primarily the result of:

• the impact of higher debt levels following the Merger.

This increase was partially offset by:

• reduced overall interest rates in effect on our outstanding debt; and

• the impact of higher cash balances following the Merger.

Provision for income taxes

	Three months ended
In millions	March 30, 2013			March 31, 2012
Income before income taxes and noncontrolling interest	$	74		$	73
Provision for income taxes		21			10
Effective tax rate		28.4	%		13.7	%

The 14.7 percentage point increase in the effective tax rate in the first quarter of 2013 from 2012 was primarily the result of:

• the favorable resolution of U.S. federal and state tax audits in 2012 that did not occur in 2013; and

• the timing of losses in jurisdictions where we recognize no tax benefits.

32

These increases were partially offset by

• the mix of global earnings, including the impact of the Merger.

LIQUIDITY AND CAPITAL RESOURCES

We generally fund cash requirements for working capital, capital expenditures, equity investments, acquisitions, debt repayments, dividend payments and share repurchases from cash generated from operations, availability under existing committed revolving credit facilities and in certain instances, public and private debt and equity offerings. We have grown our businesses in significant part in the past through acquisitions financed by credit provided under our revolving credit facilities and from time to time, by private or public debt and equity issuances. Our primary revolving credit facilities have generally been adequate for these purposes, although we have negotiated additional credit facilities as needed to allow us to complete acquisitions. We intend to issue commercial paper to fund our financing needs on a short-term basis and to use our revolving credit facility as back-up liquidity to support commercial paper.

We are focusing on increasing our cash flow and repaying existing debt, while continuing to fund our research and development, marketing and capital investment initiatives. Our intent is to maintain investment grade ratings and a solid liquidity position.

We experience seasonal cash flows primarily due to seasonal demand in a number of markets within Water & Fluid Solutions. We generally borrow in the first quarter of our fiscal year for operational purposes, which usage reverses in the second quarter as the seasonality of our businesses peaks. End-user demand for pool and certain pumping equipment follows warm weather trends and is at seasonal highs from April to August. The magnitude of the sales spike is partially mitigated by employing some advance sale “early buy” programs (generally including extended payment terms and/or additional discounts). Demand for residential and agricultural water systems is also impacted by weather patterns, particularly by heavy flooding and droughts.

Operating activities

Cash provided by operating activities was $20 million in the first three months of 2013 compared to cash used for operating activities of $68 million in the same period of 2012.

The $20 million in net cash provided by operations in the first three months of 2013 was attributed to $53 million of net income which principally reflects non-cash depreciation and amortization, share-based compensation and the gain on the sale of a business totaling $75 million. Net cash provided by operating activities also reflects an aggregate decrease in net working capital totaling $116 million. The decrease in the working capital position in the first three months of 2013 was primarily the result of increases in accounts receivable due to increased sales.

The $68 million in net cash used for operations in the first three months of 2012 was attributed to $63 million of net income which principally reflects non-cash depreciation and amortization and share-based compensation totaling $27 million. Net cash used for operating activities also reflects an aggregate decrease in net working capital totaling $130 million. The decrease in the working capital position in the first three months of 2012 was primarily the result of increases in accounts receivable due to increased sales and increases in inventories in anticipation of our peak sales season in the second and third quarters.

Investing activities

Cash used for investing activities was $19 million in the first three months of 2013 compared to cash used for investing activities of $17 million in the same period of 2012. The increase in cash used for investing activities was primarily due to an increase in capital expenditures, partially offset by $30 million of proceeds, net of transaction costs, from the sale of a business within Technical Solutions in the first quarter of 2013.

Capital expenditures in the first three months of 2013 were $50 million compared with $16 million in the prior year period. The increase in capital spending primarily relates to the Merger. We anticipate capital expenditures for fiscal 2013 to be approximately $200 million, primarily for capacity expansions of manufacturing facilities located in our low-cost countries, developing new products and general maintenance.

Financing activities

Net cash used for financing activities was $38 million in the first three months of 2013 compared with net cash provided by financing activities of $90 million in the prior year period. Net cash used for financing activities in the first three months of 2013 included share repurchases and payment of dividends, partially offset by net receipts of commercial paper and revolving long-term debt. Net cash provided for financing activities in the first three months of 2012 included net receipts of short-term borrowings, commercial paper and revolving long-term debt, partially offset by payment of dividends and repayments of long-term debt. Additionally, financing activities included draw downs and repayments on our revolving credit facilities to fund our operations in the normal course of business, cash received/used for shares issued to employees, and tax benefits related to share-based compensation.

33

The 1.35% Senior Notes due 2015, 1.875% Senior Notes due 2017, 2.65% Senior Notes due 2019, 5.00% Senior Notes due 2021 and 3.15% Senior Notes due 2022 (collectively, the “Notes”) were all issued in transactions exempt from the registration requirements of the Securities Act of 1933, as amended. In March 2013, Pentair Ltd. and our 100 percent-owned subsidiary, Pentair Finance S.A. (“PFSA”), filed a Registration Statement with the SEC offering to exchange the Notes for new, registered Notes. The exchange offer expired on April 19, 2013 and did not impact the aggregate principle amount of the Notes outstanding. The new, registered Notes issued in such exchange offer are guaranteed as to payment by Pentair Ltd.

In September 2012, Pentair, Inc. entered into a credit agreement providing for an unsecured, committed revolving credit facility (the “Credit Facility”) with initial maximum aggregate availability of up to $1,450 million. PFSA is authorized to sell short-term commercial paper notes to the extent availability exists under the Credit Facility. PFSA uses the Credit Facility as back-up liquidity to support 100% of commercial paper outstanding. As of March 30, 2013 and December 31, 2012, we had $527 million and $425 million, respectively, of commercial paper outstanding, all of which was classified as long-term as we have the intent and the ability to refinance such obligations on a long-term basis under the Credit Facility.

Total availability under the Credit Facility was $886 million as of March 30, 2013, which was not limited by any covenants contained in the Credit Facility’s credit agreement.

Our debt agreements contain certain financial covenants, the most restrictive of which are in the Credit Facility, including that we may not permit (i) the ratio of our consolidated debt plus synthetic lease obligations to our consolidated net income (excluding, among other things, non-cash gains and losses) before interest, taxes, depreciation, amortization, non-cash share-based compensation expense, and up to $40 million of costs and expenses incurred in connection with the Merger (“EBITDA”) for the four consecutive fiscal quarters then ended (the “Leverage Ratio”) to exceed 3.50 to 1.00 on the last day of each fiscal quarter, and (ii) the ratio of our EBITDA for the four consecutive fiscal quarters then ended to our consolidated interest expense, including consolidated yield or discount accrued as to outstanding securitization obligations (if any), for the same period to be less than 3.00 to 1.00 as of the end of each fiscal quarter. For purposes of the Leverage Ratio, the Credit Facility provides for the calculation of EBITDA giving pro forma effect to the Merger and certain acquisitions, divestitures and liquidations during the period to which such calculation relates. As of March 30, 2013, we were in compliance with all financial covenants in our debt agreements.

In addition to the Credit Facility, we have various other credit facilities with an aggregate availability of $88 million, of which $3 million was outstanding at March 30, 2013. Borrowings under these credit facilities bear interest at variable rates.

As of March 30, 2013, we have $141 million of cash held in certain countries in which the ability to repatriate is limited due to local regulations or significant potential tax consequences.

We expect to continue to have cash requirements to support working capital needs and capital expenditures, to pay interest and service debt and to pay dividends to shareholders quarterly. We believe we have the ability and sufficient capacity to meet these cash requirements by using available cash and internally generated funds and to borrow under our committed and uncommitted credit facilities.

We paid dividends in the first three months of 2013 of $47 million, or $0.23 per common share, compared with $22 million, or $0.22 per common share, in the prior year period. Prior to the completion of the Merger, our board of directors proposed, and Tyco as our sole shareholder authorized, us to pay cash dividends of $0.23 per share on May 10, 2013, to shareholders of record on April 26, 2013 and we expect to continue paying dividends on a quarterly basis. On February 26, 2013, our board of directors recommended that our shareholders approve at our 2013 annual meeting of shareholders a proposal to pay quarterly cash dividends through the second quarter of 2014. The proposal provides that dividends of $1.00 per share will be made out of our Capital contribution reserve equity position in our statutory accounts to our shareholders in quarterly installments of $0.25 for each of the third and fourth quarters of 2013 and first and second quarters of 2014.

The liability for uncertain tax positions was $55 million and $54 million at March 30, 2013 and December 31, 2012, respectively. We record penalties and interest related to unrecognized tax benefits in Provision for income taxes and Net interest expense, respectively, on the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss), which is consistent with our past practices.

34

Other financial measures

In addition to measuring our cash flow generation or usage based upon operating, investing and financing classifications included in the Consolidated Statements of Cash Flows, we also measure our free cash flow. We have a long-term goal to consistently generate free cash flow that equals or exceeds 100 percent conversion of net income from continuing operations. Free cash flow is a non-Generally Accepted Accounting Principles financial measure that we use to assess our cash flow performance. We believe free cash flow is an important measure of operating performance because it provides us and our investors a measurement of cash generated from operations that is available to pay dividends, make acquisitions, repay debt and repurchase shares. In addition, free cash flow is used as a criterion to measure and pay compensation-based incentives. Our measure of free cash flow may not be comparable to similarly titled measures reported by other companies. The following table is a reconciliation of free cash flow:

	Three months ended
In millions	March 30, 2013			March 31, 2012
Net cash provided by (used for) operating activities	$	20		$	(68	)
Capital expenditures		(50	)		(16	)
Proceeds from sale of property and equipment		1			2
Free cash flow	$	(29	)	$	(82	)

NEW ACCOUNTING STANDARDS

In July 2012, the Financial Accounting Standards Board (“FASB”) issued an amendment to an existing accounting standard, which provides entities an option to perform a qualitative assessment to determine whether further impairment testing on indefinite-lived intangible assets is necessary. Specifically, an entity has the option to first assess qualitative factors to determine whether it is necessary to perform a quantitative impairment test. If an entity believes, as a result of its qualitative assessment, that it is more-likely-than-not that the fair value of an indefinite-lived intangible asset is less than its carrying amount, the quantitative impairment test is required. Otherwise, no further testing is required. This guidance is effective for annual and interim indefinite-lived intangible asset impairment tests performed for fiscal years beginning after September 15, 2012. We believe that the adoption of this guidance will not have a material impact on our financial condition or results of operations.

In February 2013, the FASB issued authoritative guidance surrounding the presentation of items reclassified from Accumulated other comprehensive income (loss) (“AOCI”) to net income. This guidance requires entities to disclose, either in the notes to the consolidated financial statements or parenthetically on the face of the statement that reports comprehensive income, items reclassified out of AOCI and into net income in their entirety and the effect of the reclassification on each affected net income line item. In addition, for AOCI reclassification items that are not reclassified in their entirety into net income, a cross reference to other required disclosures is required. This guidance was effective for fiscal years and interim periods beginning after December 15, 2012. The adoption of this guidance on January 1, 2013 did not impact our financial condition or results of operations.

CRITICAL ACCOUNTING POLICIES

In our 2012 Annual Report on Form 10-K, we identified the critical accounting policies which affect our more significant estimates and assumptions used in preparing our consolidated financial statements. We have not changed these policies from those previously disclosed in our Annual Report.

35

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There have been no material changes in our market risk during the quarter ended March 30, 2013. For additional information, refer to Item 7A of our 2012 Annual Report on Form 10-K.

ITEM 4. CONTROLS AND PROCEDURES

(a)    Evaluation of Disclosure Controls and Procedures

We maintain a system of disclosure controls and procedures designed to provide reasonable assurance as to the reliability of our published financial statements and other disclosures included in this report. Our management evaluated, with the participation of our Chief Executive Officer and our Chief Financial Officer, the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the quarter ended March 30, 2013 pursuant to Rule 13a-15(b) of the Securities Exchange Act of 1934 (the “Exchange Act”). Based upon their evaluation, our Chief Executive Officer and our Chief Financial Officer concluded that our disclosure controls and procedures were effective as of the end of the quarter ended March 30, 2013 to ensure that information required to be disclosed by us in the reports we file or submit under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission’s rules and forms, and to ensure that information required to be disclosed by us in the reports we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosures.

(b)    Changes in Internal Controls

As part of our ongoing integration activities after the Merger, we are continuing to incorporate our controls and procedures into the Flow Control business and to augment our company-wide controls to reflect the risks inherent in an acquisition of this magnitude and complexity. There was no other change in our internal control over financial reporting that occurred during the quarter ended March 30, 2013 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

36

PART II OTHER INFORMATION

ITEM 1. Legal Proceedings

There have been no material developments from the disclosures contained in our 2012 Annual Report on Form 10-K.

ITEM 1A. Risk Factors

There have been no material changes from the risk factors previously disclosed in ITEM 1A. of our 2012 Annual Report on Form 10-K, except for the following:

Changes in the U.S. dollar/Swiss franc exchange rate could limit the amount of dividends authorized on our common shares, and there can be no assurance that we will be able to continue to pay dividends on our common shares.

On February 26, 2013, our board of directors proposed that our shareholders approve at our 2013 annual general meeting of shareholders a proposal to pay quarterly cash dividends through the second quarter of 2014. If approved by shareholders, the authorization will provide that a dividend will be made out of our “contributed surplus” equity position in our statutory accounts to our shareholders in the amount of $0.25 for each of the third and fourth quarters of 2013 and the first and second quarters of 2014. The deduction to our contributed surplus in our statutory accounts, which is required to be made in Swiss francs, will be determined based on the aggregate amount of the dividend and will be calculated based on the U.S. dollar/Swiss franc exchange rate in effect on April 29, 2013. The U.S. dollar amount of the dividend will be capped at an amount such that the aggregate reduction to our contributed surplus will not exceed 396 million Swiss francs. To the extent that a dividend payment would exceed the cap, the U.S. dollar per share amount of the current or future dividends will be reduced on a pro rata basis so that the aggregate amount of all dividends paid does not exceed the cap. In addition, the aggregate reduction in contributed surplus will be increased for any shares issued, and decreased for any shares acquired, after April 29, 2013 and before the record date for the applicable dividend payment.

Any future dividends that may be proposed by our board of directors will be subject to approval by our shareholders at our annual general meeting. There can be no assurance that our shareholders will approve dividends. Whether our board of directors exercises its discretion to propose any dividends to holders of our common shares will depend on many factors, including our financial condition, earnings, capital requirements of our business, covenants associated with debt obligations, legal requirements, regulatory constraints, industry practice and other factors that our board of directors deems relevant. There can be no assurance that we will continue to pay any dividend in the future.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The following table provides information with respect to purchases we made of our common shares during the first quarter of 2013:

	(a)		(b)	(c)		(d)
Period	Total number of shares purchased		Average price paid per share	Total number of shares purchased as part of publicly announced plans or programs		Dollar value of shares that may yet be purchased under the plans or programs
January 1 — January 26, 2013		1,705,026	$51.05		1,664,500		$780,877,876
January 27 — February 23, 2013		826,136	$51.77		825,200		$738,082,804
February 24 — March 30, 2013		394,368	$52.32		240,928		$725,542,079
Total		2,925,530			2,730,628

(a) The purchases in this column represent 40,526 shares for the period January 1 – January 26, 2013, 936 shares for the period January 27 – February 23, 2013 and 153,440 shares for the period February 24 – March 30, 2013 deemed surrendered to us by participants in our 2012 Stock and Incentive Plan (the “2012 Plan”) and earlier stock incentive plans that are now outstanding under the 2012 Plan (collectively “the Plans”) to satisfy the exercise price or withholding of tax obligations related to the exercise of stock options and vesting of restricted shares.

(b) The average price paid in this column includes shares deemed surrendered to us by participants in the Plans to satisfy the exercise price for the exercise price of stock options and withholding tax obligations due upon stock option exercises and vesting of restricted shares.

(c) The number of shares in this column represents the number of shares repurchased as part of our publicly announced plans to repurchase shares of our common stock up to a maximum dollar limit of $1,200 million.

(d) Prior to the closing of the Merger, our board of directors, and Tyco as our sole shareholder, authorized the repurchase of our common shares with a maximum aggregate value of $400 million following the closing of the Merger. This authorization does not have an expiration date. On October 1, 2012, our board of directors authorized the repurchase of our common shares with a maximum aggregate value of $800 million. This authorization expires on December 31, 2015 and is in addition to the $400 million share repurchase authorization.

37

ITEM 6. Exhibits

The exhibits listed in the accompanying Exhibit Index are filed as part of this Quarterly Report on Form 10-Q.

38

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on April 23, 2013.

PENTAIR LTD.
Registrant
By	/s/ John L. Stauch
	John L. Stauch
	Executive Vice President and Chief Financial Officer
By	/s/ Mark C. Borin
	Mark C. Borin
	Corporate Controller and Chief Accounting Officer

39

Exhibit Index to Form 10-Q for the Period Ended March 30, 2013

2.1	Merger Agreement, dated as of March 27, 2012, among Tyco International Ltd., Pentair Ltd. (formerly Tyco Flow Control International Ltd.), Panthro Acquisition Co., Panthro Merger Sub, Inc. and Pentair, Inc. (Incorporated by reference to Exhibit 2.1 in the Current Report on Form 8-K of Pentair, Inc. filed with the Commission on March 30, 2012 (File No. 000-04689)).
2.2	Amendment No. 1, dated as of July 25, 2012, to the Merger Agreement, dated as of March 27, 2012, among Tyco International Ltd., Pentair Ltd. (formerly Tyco Flow Control International Ltd.), Panthro Acquisition Co., Panthro Merger Sub, Inc. and Pentair, Inc. (Incorporated by reference to Exhibit 2.1 in the Current Report on Form 8-K of Pentair, Inc. filed with the Commission on July 31, 2012 (File No. 000-04689)).
2.3	Amended and Restated Separation and Distribution Agreement, dated September 27, 2012 among Tyco International Ltd., Pentair Ltd. and The ADT Corporation (Incorporated by reference to Exhibit 2.3 in the Current Report on Form 8-K of Pentair Ltd. filed with the Commission on September 28, 2012 (File No. 001-11625)).
10.1	Agreement, dated March 6, 2013, between Pentair Ltd. and Randall J. Hogan (Incorporated by reference to Exhibit 10.1 in the Current Report on Form 8-K of Pentair Ltd. filed with the Commission on March 8, 2013 (File No. 000-11625)).
31.1	Certification of Chief Executive Officer.
31.2	Certification of Chief Financial Officer.
32.1	Certification of Chief Executive Officer, Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of Chief Financial Officer, Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	The following materials from Pentair Ltd.’s Quarterly Report on Form 10-Q for the quarter ended March 30, 2013 are filed herewith, formatted in XBRL (Extensible Business Reporting Language): (i) the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) for the three months ended March 30, 2013 and March 31, 2012, (ii) the Condensed Consolidated Balance Sheets as of March 30, 2013 and December 31, 2012, (iii) the Condensed Consolidated Statements of Cash Flows for the three months ended March 30, 2013 and March 31, 2012, (iv) the Condensed Consolidated Statements of Changes in Equity for the three months ended March 30, 2013 and March 31, 2012, and (v) Notes to Condensed Consolidated Financial Statements.

40

EX-31.1

Exhibit 31.1

Certification

I, Randall J. Hogan, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Pentair Ltd.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting that are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 23, 2013	/s/ Randall J. Hogan
	Randall J. Hogan
	Chairman and Chief Executive Officer

EX-31.2

Exhibit 31.2

Certification

I, John L. Stauch, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Pentair Ltd.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting that are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: April 23, 2013	/s/ John L. Stauch
	John L. Stauch
	Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification of CEO Pursuant To

18 U.S.C. Section 1350,

As Adopted Pursuant To

Section 906 Of The Sarbanes-Oxley Act Of 2002

In connection with the Quarterly Report of Pentair Ltd. (the “Company”) on Form 10-Q for the period ended March 30, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Randall J. Hogan, Chairman and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that based on my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

Date: April 23, 2013	/s/ Randall J. Hogan
	Randall J. Hogan
	Chairman and Chief Executive Officer

EX-32.2

Exhibit 32.2

Certification of CFO Pursuant To

18 U.S.C. Section 1350,

As Adopted Pursuant To

Section 906 Of The Sarbanes-Oxley Act Of 2002

In connection with the Quarterly Report of Pentair Ltd. (the “Company”) on Form 10-Q for the period ended March 30, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John L. Stauch, Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that based on my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

Date: April 23, 2013	/s/ John L. Stauch
	John L. Stauch
	Executive Vice President and Chief Financial Officer

XML

Share Plans - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 10	$ 5
Total share-based compensation expense on restricted share awards	7	3
Total share-based compensation expense for stock options	$ 3	$ 2
2012 Stock and Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options and restricted stock units issued under stock and incentive plan	1.2
Number of stock option issued under stock and incentive plan	0.9
Weighted-average fair value of options granted	$ 13.89
Restricted Stock Units (RSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock Units (RSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Restricted Stock Units (RSUs) | 2012 Stock and Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock units issued under stock and incentive plan	0.3
Weighted-average fair value of restricted stock units granted	$ 50.60
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years

XML

Recorded Amounts and Estimated Fair Values of Long-term Debt and Derivative Financial Instruments (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012
Derivative [Line Items]
Total Debt	$ 2,598	$ 2,457
Carrying (Reported) Amount, Fair Value Disclosure
Derivative [Line Items]
Variable rate debt	570	428
Fixed rate debt	2,028	2,029
Total Debt	2,598	2,457
Estimate of Fair Value, Fair Value Disclosure
Derivative [Line Items]
Variable rate debt	570	428
Fixed rate debt	2,067	2,081
Total Debt	$ 2,637	$ 2,509

XML

Goodwill and Other Identifiable Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Dec. 31, 2012
Water & Fluid Solutions
Goodwill And Other Intangible Assets [Line Items]
Intangible asset amortization expense	$ 42	$ 10
Impairment charges, related to trade names			49
Technical Solutions
Goodwill And Other Intangible Assets [Line Items]
Impairment charges, related to trade names			$ 12

XML

Assets and Liabilities Measured at Fair Value (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013		Dec. 31, 2012
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract assets	$ 3		$ 3
Foreign currency contract liabilities	(1)		(1)
Deferred compensation plan	28	[1]	23	[1]
Total recurring fair value measurements	30		25
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trade name intangibles			64	[2]
Total nonrecurring fair value measurement			64
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan	28	[1]	23	[1]
Total recurring fair value measurements	28		23
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contract assets	3		3
Foreign currency contract liabilities	(1)		(1)
Total recurring fair value measurements	2		2
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trade name intangibles			64	[2]
Total nonrecurring fair value measurement			$ 64

[1] Deferred compensation plan assets include mutual funds and cash equivalents for payment of certain non-qualified benefits for retired, terminated and active employees. The fair value of these assets was based on quoted market prices in active markets.

[2] In the fourth quarter of 2012, we completed our annual intangible assets impairment review. As a result, we recorded a pre-tax non-cash impairment charge of $61 million for trade names intangibles. The fair value of trade names is measured using the relief-from-royalty method. This method assumes the trade name has value to the extent that the owner is relieved of the obligation to pay royalties for the benefits received from them. This method requires us to estimate the future revenue for the related brands, the appropriate royalty rate and the weighted average cost of capital.

XML

Changes in Carrying Amount of Goodwill by Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				3 Months Ended
	Mar. 30, 2013	Mar. 30, 2013 Water & Fluid Solutions	Mar. 30, 2013 Valves & Controls	Dec. 31, 2012 Valves & Controls	Mar. 30, 2013 Technical Solutions
Goodwill [Line Items]
Beginning Balance	$ 4,895	$ 2,410	$ 1,334	$ 1,334	$ 1,151
Acquisitions/ divestitures	(5)				(5)
Foreign currency translation/other	(23)	(21)			(2)
Ending Balance	$ 4,867	$ 2,389	$ 1,334	$ 1,334	$ 1,144

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Segment information (Tables)

3 Months Ended

Mar. 30, 2013

Financial Information by Reportable Segment

Financial information by reportable segment is shown below:

	Three months ended
In millions	March 30, 2013			March 31, 2012
Net sales
Water & Fluid Solutions	$	782		$	587
Valves & Controls		586			—
Technical Solutions		410			273
Other		(4	)		(2)
Consolidated	$	1,774		$	858
Operating income (loss)
Water & Fluid Solutions	$	75		$	64
Valves & Controls		(19	)		—
Technical Solutions		53			50
Other		(35	)		(28)
Consolidated	$	74		$	86

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Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Dec. 31, 2012
Income Taxes [Line Items]
Income tax rate	28.40%	13.70%
Total gross liability for unrecognized tax benefits	$ 55		$ 54
Shared Tax Liabilities description	Costs and expenses associated with the management of Shared Tax Liabilities, Distribution Taxes and BHS Tax Liabilities will generally be shared 20% by us, 27.5% by ADT and 52.5% by Tyco.
Percentage of Shared Tax Liabilities	20.00%
2012 Tax Sharing Agreement
Income Taxes [Line Items]
Shared Tax Liabilities description	Tyco is responsible for the first $500 million of Shared Tax Liabilities. We and ADT will share 42% and 58%, respectively, of the next $225 million of Shared Tax Liabilities. We, ADT and Tyco will share 20%, 27.5% and 52.5%, respectively, of Shared Tax Liabilities above $725 million.
Next $225 million of Shared Tax Liabilities | 2012 Tax Sharing Agreement
Income Taxes [Line Items]
Percentage of Shared Tax Liabilities	42.00%
Tax Liabilities above $725 million | 2012 Tax Sharing Agreement
Income Taxes [Line Items]
Percentage of Shared Tax Liabilities	20.00%
ADT
Income Taxes [Line Items]
Percentage of Shared Tax Liabilities	27.50%
ADT | Next $225 million of Shared Tax Liabilities | 2012 Tax Sharing Agreement
Income Taxes [Line Items]
Percentage of Shared Tax Liabilities	58.00%
ADT | Tax Liabilities above $725 million | 2012 Tax Sharing Agreement
Income Taxes [Line Items]
Percentage of Shared Tax Liabilities	27.50%
Tyco
Income Taxes [Line Items]
Percentage of Shared Tax Liabilities	52.50%
Tyco | Tax Liabilities above $725 million | 2012 Tax Sharing Agreement
Income Taxes [Line Items]
Percentage of Shared Tax Liabilities	52.50%

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Share Plans (Tables)

3 Months Ended

Mar. 30, 2013

Assumptions Used in Calculating Estimated Fair Value of Stock Option Award

We estimated the fair value of each stock option award on the date of grant using a Black-Scholes option pricing model, modified for dividends and using the following assumptions:

	March 30,     2013		March 31,       2012
Risk-free interest rate		0.69%		0.96%
Expected dividend yield		2.01%		2.48%
Expected share price volatility		36.0%		36.5%
Expected term (years)		5.7		5.7

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Debt and Average Interest Rates on Debt Outstanding (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Contractual debt obligations	$ 2,598	$ 2,457
Less: Current maturities and short-term borrowings	(6)	(3)
Long-term debt	2,592	2,454
Commercial Paper
Debt Instrument [Line Items]
Debt, average interest rate	0.577%
Maturity (Year)	2017
Contractual debt obligations	527	425
Revolving credit facilities
Debt Instrument [Line Items]
Debt, average interest rate	1.296%
Maturity (Year)	2017
Contractual debt obligations	37
Senior Notes One Point Three Five Zero Percent Due Twenty Fifteen | Fixed Rate
Debt Instrument [Line Items]
Debt, average interest rate	1.35%
Maturity (Year)	2015
Contractual debt obligations	350	350
Senior Notes One Point Eight Seven Five Percent Due Twenty Seventeen | Fixed Rate
Debt Instrument [Line Items]
Debt, average interest rate	1.875%
Maturity (Year)	2017
Contractual debt obligations	350	350
Senior Notes Two Point Six Five Zero Percent Due Twenty Nineteen | Fixed Rate
Debt Instrument [Line Items]
Debt, average interest rate	2.65%
Maturity (Year)	2019
Contractual debt obligations	250	250
Senior Notes, 5.00 Percent Due 2021 | Fixed Rate
Debt Instrument [Line Items]
Debt, average interest rate	5.00%
Maturity (Year)	2021
Contractual debt obligations	500	500
Senior Notes Three Point One Five Zero Percent Due Twenty Twenty Two | Fixed Rate
Debt Instrument [Line Items]
Debt, average interest rate	3.15%
Maturity (Year)	2022
Contractual debt obligations	550	550
Debt, Other
Debt Instrument [Line Items]
Debt, average interest rate	0.697%
Contractual debt obligations	12	8
Debt, Other | Minimum
Debt Instrument [Line Items]
Maturity (Year)	2014
Debt, Other | Maximum
Debt Instrument [Line Items]
Maturity (Year)	2030
Capital Lease Obligations
Debt Instrument [Line Items]
Debt, average interest rate	4.267%
Contractual debt obligations	$ 22	$ 24
Capital Lease Obligations | Minimum
Debt Instrument [Line Items]
Maturity (Year)	2015
Capital Lease Obligations | Maximum
Debt Instrument [Line Items]
Maturity (Year)	2025

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Restructuring Related Costs Included in Selling, General & Administrative expenses on Consolidated Statements of Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 22
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	20
Other
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 2

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Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) (Tyco Flow Control International, Ltd, USD $) In Millions, unless otherwise specified	Sep. 28, 2012
Tyco Flow Control International, Ltd
Business Acquisition [Line Items]
Cash and cash equivalents	$ 692
Accounts and notes receivable	774
Inventories	1,045
Other current assets	98
Property, plant and equipment	820
Goodwill	2,526
Intangibles	1,425
Other non-current assets	275
Current liabilities	(865)
Long-term debt	(915)
Income taxes, including current and deferred	(361)
Other liabilities and redeemable noncontrolling interest	(591)
Total purchase price	$ 4,923

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Debt Outstanding Matures on Calendar Year Basis (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Debt outstanding maturities Q2 to Q4 of 2013	$ 6
Debt outstanding maturities 2014	3
Debt outstanding maturities 2015	356
Debt outstanding maturities 2016	1
Debt outstanding maturities 2017	918
Debt outstanding maturities 2018	1
Debt outstanding maturities Thereafter	1,313
Total Debt	2,598	2,457
Contractual Maturity
Debt Instrument [Line Items]
Debt outstanding maturities Q2 to Q4 of 2013	3
Debt outstanding maturities 2015	350
Debt outstanding maturities 2017	917
Debt outstanding maturities Thereafter	1,306
Total Debt	2,576
Capital Lease Obligations
Debt Instrument [Line Items]
Debt outstanding maturities Q2 to Q4 of 2013	3
Debt outstanding maturities 2014	3
Debt outstanding maturities 2015	6
Debt outstanding maturities 2016	1
Debt outstanding maturities 2017	1
Debt outstanding maturities 2018	1
Debt outstanding maturities Thereafter	7
Total Debt	$ 22

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Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013 LegalMatter	Dec. 31, 2012
Loss Contingencies [Line Items]
Number Of Lawsuits	1,900
Number Of Claims In Lawsuit	2,300
Estimated liability for asbestos-related claims	$ 234	$ 235
Estimated receivable for insurance recoveries	157	157
Environmental Reserve	36	36
Letters of credit outstanding	$ 514	$ 493

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Detail of Identifiable Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012
Acquired Intangible Assets by Major Class [Line Items]
Cost	$ 2,126	$ 2,139
Accumulated amortization	(267)	(229)
Net	1,859	1,910
Gross carrying amount	552	556
Accumulated amortization
Net	552	556
Finite-life intangibles
Acquired Intangible Assets by Major Class [Line Items]
Cost	1,574	1,583
Accumulated amortization	(267)	(229)
Net	1,307	1,354
Finite-life intangibles | Customer relationships
Acquired Intangible Assets by Major Class [Line Items]
Cost	1,269	1,277
Accumulated amortization	(172)	(153)
Net	1,097	1,124
Finite-life intangibles | Trade names intangibles
Acquired Intangible Assets by Major Class [Line Items]
Cost	2	1
Accumulated amortization	(1)
Net	1	1
Finite-life intangibles | Proprietary technology
Acquired Intangible Assets by Major Class [Line Items]
Cost	262	264
Accumulated amortization	(63)	(58)
Net	199	206
Finite-life intangibles | Backlog
Acquired Intangible Assets by Major Class [Line Items]
Cost	41	41
Accumulated amortization	(31)	(18)
Net	$ 10	$ 23

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Acquisitions and Divestitures

3 Months Ended

Mar. 30, 2013

Acquisitions and Divestitures

2. Acquisitions and Divestitures

Material acquisitions

Pentair Ltd., formerly known as Tyco Flow Control International Ltd. (as used prior to the Merger (as defined below), “Flow Control”), took its current form on September 28, 2012 as a result of a spin-off of Flow Control from its parent, Tyco International Ltd. (“Tyco”), and a reverse acquisition involving Pentair, Inc. Prior to the spin-off, Tyco engaged in an internal restructuring whereby it transferred to Flow Control certain assets related to the flow control business of Tyco, and Flow Control assumed from Tyco certain liabilities related to the flow control business of Tyco. On September 28, 2012 prior to the Merger, Tyco effected a spin-off of Flow Control through the pro-rata distribution of 100% of the outstanding common shares of Flow Control to Tyco’s shareholders (the “Distribution”), resulting in the distribution of approximately 110.9 million of our common shares to Tyco’s shareholders. Immediately following the Distribution, an indirect, wholly-owned subsidiary of ours merged with and into Pentair, Inc., with Pentair, Inc. surviving as an indirect, wholly-owned subsidiary of ours (the “Merger”). The Merger was accounted for as a reverse acquisition under the purchase method of accounting with Pentair, Inc. treated as the acquirer. Flow Control’s net sales and income for the three months ending March 30, 2013 were $888 million and $22 million, respectively.

During the first quarter of 2013, the Company recorded fair value adjustments to its preliminary allocation of purchase price, including increases to accounts receivable, current liabilities, and net deferred tax liabilities and decreases to inventory, other current assets, property, plant and equipment and other non-current assets. These adjustments were applied retrospectively back to the date of the Merger. The net impact of those adjustments increased the preliminary allocation of goodwill by less than $1 million.

The purchase price has been preliminarily allocated based on the estimated fair value of net assets acquired and liabilities assumed at the date of the Merger. The preliminary purchase price allocation is subject to further refinement and may require significant adjustments to arrive at the final purchase price allocation. These adjustments will primarily relate to accounts receivable, inventories, property, plant and equipment, certain contingent liabilities and income tax-related items. We expect the purchase price allocation to be completed in the third quarter of 2013. There can be no assurance that such finalization will not result in material changes from the preliminary purchase price allocation. The purchase price is subject to a working capital and net indebtedness adjustment.

The following table summarizes our preliminary fair values of the assets acquired and liabilities assumed in the Merger:

In millions
Cash and cash equivalents	$	692
Accounts and notes receivable		774
Inventories		1,045
Other current assets		98
Property, plant and equipment		820
Goodwill		2,526
Intangibles		1,425
Other non-current assets		275
Current liabilities		(865)
Long-term debt		(915)
Income taxes, including current and deferred		(361)
Other liabilities and redeemable noncontrolling interest		(591)
Total purchase price	$	4,923

The excess of purchase price over tangible net assets and identified intangible assets acquired was allocated to goodwill in the amount of $2,526 million. Goodwill has been preliminarily allocated to our reporting segments as follows: $321 million to Water & Fluid Solutions, $1,334 million to Valves & Controls and $871 million to Technical Solutions. None of the goodwill recognized from the Merger is expected to be deductible for income tax purposes. Goodwill recognized from the Merger reflects the value of future income resulting from synergies of our combined operations. Identifiable intangible assets acquired as part of the Merger were $1,425 million and include $362 million of indefinite life trade name intangibles and the following definite-lived intangibles: $906 million of customer relationships with a weighted average useful life of 14.2 years, $116 million of proprietary technology with a weighted average useful life of 13.7 years and $41 million of customer backlog with a weighted average useful life of less than one year.

Pro forma results of material acquisitions

The following unaudited pro forma condensed consolidated financial results of operations are presented as if the Merger had been completed on January 1, 2011:

	Three months ended
In millions, except per-share data	March 31, 2012
Pro forma net sales	$	1,857
Pro forma net income attributable to Pentair Ltd.		107
Diluted earnings per common share attributable to Pentair Ltd.		0.51

The 2012 unaudited pro forma net income excludes the impact of $12 million of transaction related costs associated with the Merger.

The pro forma consolidated financial information was prepared for comparative purposes only and includes certain adjustments, as noted above. The adjustments are estimates based on currently available information and actual amounts may have differed materially from these estimates. They do not reflect the effect of costs or synergies that would have been expected to result from the integration of Flow Control. The pro forma information does not purport to be indicative of the results of operations that actually would have resulted had the business combination occurred at the beginning of the period presented or of future results of the consolidated entities.

Other acquisitions

On October 4, 2012, we acquired, as part of Valves & Controls, the remaining 25% equity interest in Pentair Middle East Holding S.a.r.l. (“KEF”), a privately held company, for $100 million in cash. Prior to the acquisition, we held a 75% equity interest in KEF, a vertically integrated valve manufacturer in the Middle East. There was no pro forma impact from this acquisition as the results of KEF were consolidated into Flow Control’s financial statements prior to acquiring the remaining 25% interest in KEF.

Additionally, during the year ended December 31, 2012, we completed other small acquisitions as part of Water & Fluid Solutions with purchase prices totaling $121 million in cash, net of cash acquired. Total goodwill recorded as part of the purchase price allocations was $81 million, $67 million of which is tax deductible.

Divestitures

During the first quarter of 2013, we sold a business that was part of Technical Solutions for cash of $30 million, net of transaction costs, resulting in a gain of $17 million. Goodwill of $5 million was included in the assets of the business sold. The sales price is subject to a working capital adjustment.

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Changes in Carrying Amount of Service and Product Warranties (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013
Product Liability Contingency [Line Items]
Beginning balance	$ 54
Service and product warranty provision	12
Payments	(13)
Ending balance	$ 53

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Restructuring Accrual Activity recorded on Condensed Consolidated Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 57
Costs incurred	20
Cash payments and other	(18)
Ending balance	$ 59

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Goodwill and Other Identifiable Intangible Assets (Tables)

3 Months Ended

Mar. 30, 2013

Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by segment were as follows:

In millions	December 31, 2012		Acquisitions/ divestitures			Foreign currency  translation/other			March 30, 2013
Water & Fluid Solutions	$	2,410	$	—		$	(21	)	$	2,389
Valves & Controls		1,334		—			—			1,334
Technical Solutions		1,151		(5	)		(2	)		1,144
Total goodwill	$	4,895	$	(5	)	$	(23	)	$	4,867

Detail of Identifiable Intangible Assets

Identifiable intangible assets consisted of the following:

	March 30, 2013						December 31, 2012
In millions	Cost		Accumulated amortization		Net		Cost		Accumulated amortization		Net
Finite-life intangibles
Customer relationships	$	1,269	$	(172)	$	1,097	$	1,277	$	(153)	$	1,124
Trade names		2		(1)		1		1		—		1
Proprietary technology		262		(63)		199		264		(58)		206
Backlog		41		(31)		10		41		(18)		23
Total finite-life intangibles	$	1,574	$	(267)	$	1,307	$	1,583	$	(229)	$	1,354
Indefinite-life intangibles
Trade names		552		—		552		556		—		556
Total intangibles, net	$	2,126	$	(267)	$	1,859	$	2,139	$	(229)	$	1,910

Estimated Future Amortization Expense for Identifiable Intangible Assets

Estimated future amortization expense for identifiable intangible assets during the remainder of 2013 and the next five years is as follows:

	Q2-Q4
In millions	2013		2014		2015		2016		2017		2018
Estimated amortization expense	$	93	$	114	$	113	$	112	$	111	$	108

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Supplemental Balance Sheet Information (Tables)

3 Months Ended

Mar. 30, 2013

Supplemental Balance Sheet Information

In millions	March 30,     2013		December 31,     2012
Inventories
Raw materials and supplies	$	616	$	616
Work-in-process		190		208
Finished goods		521		555
Total inventories	$	1,327	$	1,379
Other current assets
Cost in excess of billings	$	138	$	124
Prepaid expenses		100		95
Deferred income taxes		79		71
Other current assets		27		34
Total other current assets	$	344	$	324
Property, plant and equipment, net
Land and land improvements	$	247	$	248
Buildings and leasehold improvements		474		482
Machinery and equipment		1,087		1,091
Construction in progress		131		114
Total property, plant and equipment		1,939		1,935
Accumulated depreciation and amortization		717		711
Total property, plant and equipment, net	$	1,222	$	1,224
Other non-current assets
Asbestos-related insurance receivable	$	157	$	157
Deferred income taxes		100		89
Other non-current assets		226		241
Total other non-current assets	$	483	$	487
Other current liabilities
Deferred revenue and customer deposits	$	133	$	127
Dividends payable		47		95
Billings in excess of cost		66		61
Accrued warranty		53		54
Other current liabilities		334		335
Total other current liabilities	$	633	$	672
Other non-current liabilities
Asbestos-related liabilities	$	234	$	235
Taxes payable		50		49
Other non-current liabilities		168		153
Total other non-current liabilities	$	452	$	437

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Assets and Liabilities Measured at Fair Value (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-cash impairment charge of related to trade name intangibles	$ 61

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Basic and Diluted Earnings Per Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2013		Mar. 31, 2012
Computation Of Earnings Per Share Line Items
Net income attributable to Pentair Ltd.	$ 52		$ 62
Weighted average common shares outstanding
Basic	204.8		98.6
Dilutive impact of stock options and restricted stock units	3.4	[1]	1.8	[1]
Diluted	208.2		100.4
Earnings per common share attributable to Pentair Ltd.
Basic earnings per common share	$ 0.25		$ 0.63
Diluted earnings per common share	$ 0.25		$ 0.62
Anti-dilutive stock options and restricted stock units	1.0	[2]	2.5	[2]

[1] The incremental share impact from stock options and restricted stock units was computed using the treasury stock method.

[2] Stock options and restricted stock units that were not dilutive were excluded from our calculation of diluted weighted average shares.

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Debt (Tables)

3 Months Ended

Mar. 30, 2013

Debt and Average Interest Rates on Debt Outstanding

Debt and the average interest rates on debt outstanding were as follows:

In millions	Average interest rate at March 30, 2013	Maturity Year	March 30, 2013			December 31, 2012
Commercial paper	0.577%	2017	$	527		$	425
Revolving credit facilities	1.296%	2017		37			—
Senior notes - fixed rate	1.350%	2015		350			350
Senior notes - fixed rate	1.875%	2017		350			350
Senior notes - fixed rate	2.650%	2019		250			250
Senior notes - fixed rate	5.000%	2021		500			500
Senior notes - fixed rate	3.150%	2022		550			550
Other	0.697%	2014-2030		12			8
Capital lease obligations	4.267%	2015-2025		22			24
Total debt				2,598			2,457
Less: Current maturities and short-term borrowings				(6	)		(3)
Long-term debt			$	2,592		$	2,454

Debt Outstanding Matures on Calendar Year Basis

Debt outstanding at March 30, 2013 matures on a calendar year basis as follows:

	Q2 - Q4
In millions	2013		2014		2015		2016		2017		2018		Thereafter		Total
Contractual debt obligation maturities	$	3	$	—	$	350	$	—	$	917	$	—	$	1,306	$	2,576
Capital lease obligations		3		3		6		1		1		1		7		22
Total maturities	$	6	$	3	$	356	$	1	$	918	$	1	$	1,313	$	2,598

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Derivatives and Financial Instruments (Tables)

3 Months Ended

Mar. 30, 2013

Recorded Amounts and Estimated Fair Values of Long-term Debt and Derivative Financial Instruments

The recorded amounts and estimated fair values of total debt, excluding the effects of derivative financial instruments, were as follows:

	March 30, 2013				December 31, 2012
In millions	Recorded Amount		Fair Value		Recorded Amount		Fair Value
Variable rate debt	$	570	$	570	$	428	$	428
Fixed rate debt		2,028		2,067		2,029		2,081
Total debt	$	2,598	$	2,637	$	2,457	$	2,509

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

Financial assets and liabilities measured at fair value on a recurring basis were as follows:

	March 30, 2013
In millions	Level 1		Level 2			Level 3		Total
Recurring fair value measurements
Foreign currency contract assets	$	—	$	3		$	—	$	3
Foreign currency contract liabilities		—		(1	)		—		(1	)
Deferred compensation plan (1)		28		—			—		28
Total recurring fair value measurements		28		2			—		30
	December 31, 2012
In millions	Level 1		Level 2			Level 3		Total
Recurring fair value measurements
Foreign currency contract assets	$	—	$	3		$	—	$	3
Foreign currency contract liabilities		—		(1	)		—		(1	)
Deferred compensation plan (1)		23		—			—		23
Total recurring fair value measurements	$	23	$	2		$	—	$	25
Nonrecurring fair value measurements
Trade name intangibles (2)	$	—	$	—		$	64	$	64
Total nonrecurring fair value measurement	$	—	$	—		$	64	$	64

(1) Deferred compensation plan assets include mutual funds and cash equivalents for payment of certain non-qualified benefits for retired, terminated and active employees. The fair value of these assets was based on quoted market prices in active markets.

(2) In the fourth quarter of 2012, we completed our annual intangible assets impairment review. As a result, we recorded a pre-tax non-cash impairment charge of $61 million for trade names intangibles. The fair value of trade names is measured using the relief-from-royalty method. This method assumes the trade name has value to the extent that the owner is relieved of the obligation to pay royalties for the benefits received from them. This method requires us to estimate the future revenue for the related brands, the appropriate royalty rate and the weighted average cost of capital.

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Basis of Presentation and Responsibility for Interim Financial Statements

3 Months Ended

Mar. 30, 2013

Basis of Presentation and Responsibility for Interim Financial Statements

1. Basis of Presentation and Responsibility for Interim Financial Statements

The accompanying unaudited condensed consolidated financial statements of Pentair Ltd. and subsidiaries (“we,” “us,” “our,” “Pentair,” or “the Company”) have been prepared following the requirements of the U.S. Securities and Exchange Commission (“SEC”) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by accounting principles generally accepted in the United States of America can be condensed or omitted.

We are responsible for the unaudited financial statements included in this document. The financial statements include all normal recurring adjustments that are considered necessary for the fair presentation of our financial position and operating results. As these are condensed financial statements, one should also read our consolidated financial statements and notes thereto, which are included in our Annual Report on Form 10-K for the year ended December 31, 2012.

Revenues, expenses, cash flows, assets and liabilities can and do vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be indicative of those for a full year.

Our fiscal year ends on December 31. We report our interim quarterly periods on a 13-week basis ending on a Saturday.

New Accounting Standards

In February 2013, the FASB issued authoritative guidance surrounding the presentation of items reclassified from Accumulated other comprehensive income (loss) (“AOCI”) to net income. This guidance requires entities to disclose, either in the notes to the consolidated financial statements or parenthetically on the face of the statement that reports comprehensive income, items reclassified out of AOCI and into net income in their entirety and the effect of the reclassification on each affected net income line item. In addition, for AOCI reclassification items that are not reclassified in their entirety into net income, a cross reference to other required disclosures is required. This guidance was effective for fiscal years and interim periods beginning after December 15, 2012. The adoption of this guidance on January 1, 2013 did not impact our financial condition or results of operations. The reclassifications out of AOCI and into net income were not material for the three months ended March 30, 2013.

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Benefit Plans (Tables)

3 Months Ended

Mar. 30, 2013

Components of Net Periodic Benefit Cost

Components of net periodic benefit cost for our pension plans for the three months ended March 30, 2013 and March 31, 2012 were as follows:

	Three months ended
	U.S. pension plans						Non-U.S. pension plans
In millions	March 30, 2013			March 31, 2012			March 30, 2013			March 31, 2012
Service cost	$	4		$	3		$	2		$	1
Interest cost		3			7			5			1
Expected return on plan assets		(2	)		(7	)		(4	)		—
Net periodic benefit cost	$	5		$	3		$	3		$	2

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Assumptions Used in Calculating Estimated Fair Value of Stock Option Award (Detail)	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.69%	0.96%
Expected dividend yield	2.01%	2.48%
Expected share price volatility	36.00%	36.50%
Expected term (years)	5 years 8 months 12 days	5 years 8 months 12 days

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Derivatives and Financial Instruments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended			1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Dec. 31, 2012	Apr. 30, 2011 Interest Rate Swap	Mar. 30, 2013 Interest Rate Swap	Dec. 31, 2012 Interest Rate Swap
Derivative [Line Items]
Location of the swap on the consolidated balance sheets	Derivative gains and losses included in AOCI
Incremental expense resulting from interest rate swaps		$ 2
Notional amount of interest rate swap contracts				400
Average swap interest rate				3.65%
Cost of expiration (termination)				11
Derivative instrument contractual life				10 years
Unrealized net loss					9	9
Outstanding foreign currency derivative contract	$ 175		$ 164

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Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Net sales	$ 1,774	$ 858
Cost of goods sold	1,250	577
Gross profit	524	281
Selling, general and administrative	416	174
Research and development	34	21
Operating income	74	86
Other (income) expense:
Equity income of unconsolidated subsidiaries		(2)
Gain on sale of business	(17)
Net interest expense	17	15
Income before income taxes and noncontrolling interest	74	73
Provision for income taxes	21	10
Net income before noncontrolling interest	53	63
Noncontrolling interest	1	1
Net income attributable to Pentair Ltd.	52	62
Comprehensive income (loss), net of tax
Net income before noncontrolling interest	53	63
Changes in cumulative translation adjustment	(76)	40
Changes in market value of derivative financial instruments	1	2
Total comprehensive income (loss)	(22)	105
Less: Comprehensive income attributable to noncontrolling interest	1	2
Comprehensive income (loss) attributable to Pentair Ltd.	$ (23)	$ 103
Earnings per common share attributable to Pentair Ltd.
Basic	$ 0.25	$ 0.63
Diluted	$ 0.25	$ 0.62
Weighted average common shares outstanding
Basic	204.8	98.6
Diluted	208.2	100.4
Cash dividends paid per common share	$ 0.23	$ 0.22

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Supplemental Balance Sheet Information (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012
Inventories
Raw materials and supplies	$ 616	$ 616
Work-in-process	190	208
Finished goods	521	555
Total inventories	1,327	1,379
Other current assets
Cost in excess of billings	138	124
Prepaid expenses	100	95
Deferred income taxes	79	71
Other current assets	27	34
Total other current assets	344	324
Property, plant and equipment, net
Land and land improvements	247	248
Buildings and leasehold improvements	474	482
Machinery and equipment	1,087	1,091
Construction in progress	131	114
Total property, plant and equipment	1,939	1,935
Accumulated depreciation and amortization	717	711
Total property, plant and equipment, net	1,222	1,224
Other non-current assets
Asbestos-related insurance receivable	157	157
Deferred income taxes	100	89
Other non-current assets	226	241
Total other non-current assets	483	487
Other current liabilities
Deferred revenue and customer deposits	133	127
Dividends payable	47	95
Billings in excess of cost	66	61
Accrued warranty	53	54
Other current liabilities	334	335
Total other current liabilities	633	672
Other non-current liabilities
Asbestos-related liabilities	234	235
Taxes payable	50	49
Other non-current liabilities	168	153
Total other non-current liabilities	$ 452	$ 437

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Condensed Consolidated Statements of Changes in Equity (USD $) In Millions	Total	Common shares	Treasury shares	Capital contribution reserve	Retained earnings	Accumulated other comprehensive income (loss)	Total Pentair Ltd.	Noncontrolling interest
Beginning Balance at Dec. 31, 2011	$ 2,047	$ 48		$ 458	$ 1,465	$ (38)	$ 1,933	$ 114
Beginning Balance (in shares) at Dec. 31, 2011		98.6
Net income (loss)	63				62		62	1
Change in cumulative translation adjustment	40					39	39	1
Changes in market value of derivative financial instruments, net of $0 and $1 tax for the three months ended March 30, 2013 and March 31, 2012 respectively	2					2	2
Dividends declared	(22)				(22)		(22)
Exercise of options, net of shares tendered for payment (in shares)		0.3
Exercise of options, net of shares tendered for payment	10			10			10
Issuance of restricted shares, net of cancellations (in shares)		0.2
Issuance of restricted shares, net of cancellations	4			4			4
Shares surrendered by employees to pay taxes (in shares)		(0.1)
Shares surrendered by employees to pay taxes	(2)			(2)			(2)
Share-based compensation	2			2			2
Ending Balance at Mar. 31, 2012	2,144	48		472	1,505	3	2,028	116
Ending Balance (in shares) at Mar. 31, 2012		99.0
Beginning Balance at Dec. 31, 2012	6,479	113	(315)	5,285	1,292	(12)	6,363	116
Beginning Balance (in shares) at Dec. 31, 2012		213.0	(6.9)
Net income (loss)	53				52		52	1
Change in cumulative translation adjustment	(76)					(76)	(76)
Changes in market value of derivative financial instruments, net of $0 and $1 tax for the three months ended March 30, 2013 and March 31, 2012 respectively	1					1	1
Tax benefits of share-based compensation	6			6			6
Dividends declared	1			1			1
Distribution to noncontrolling interest	(2)							(2)
Share repurchase (in shares)			(2.7)
Share repurchase	(140)		(140)				(140)
Exercise of options, net of shares tendered for payment (in shares)			0.8
Exercise of options, net of shares tendered for payment	23		34	(11)			23
Issuance of restricted shares, net of cancellations (in shares)			0.5
Issuance of restricted shares, net of cancellations			24	(24)
Shares surrendered by employees to pay taxes (in shares)			(0.2)
Shares surrendered by employees to pay taxes	(12)		(9)	(3)			(12)
Share-based compensation	10			10			10
Ending Balance at Mar. 30, 2013	$ 6,343	$ 113	$ (406)	$ 5,264	$ 1,344	$ (87)	$ 6,228	$ 115
Ending Balance (in shares) at Mar. 30, 2013		213.0	(8.5)

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Shareholder's Equity - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		3 Months Ended		1 Months Ended	9 Months Ended
	Mar. 30, 2013	Dec. 31, 2012	Mar. 30, 2013 Stock Repurchase Program	Oct. 30, 2012 Stock Repurchase Program	Oct. 30, 2012 Stock Repurchase Program Maximum	Sep. 30, 2012 Stock Repurchase Program Maximum	Mar. 30, 2013 Fourth Quarter Twenty Twelve	Mar. 30, 2013 First Quarter Twenty Thirteen	Mar. 30, 2013 Second Quarter Twenty Thirteen	Jun. 30, 2014 Scenario, Forecast	Mar. 31, 2014 Scenario, Forecast	Dec. 31, 2013 Scenario, Forecast	Sep. 30, 2013 Scenario, Forecast	Feb. 26, 2013 Scenario, Forecast
Stockholders Equity Note Disclosure [Line Items]
Repurchase of shares of our common stock up to a maximum aggregate value					$ 800	$ 400
Common Stock Authorized for Repurchase, Expiration Date				Dec. 31, 2015
Share repurchase program remaining available amount			726
Repurchase of Common Stock, Shares			2.7
Repurchase of Common Stock, Value	140		140
Dividends Payable Amount Per Share	$ 0.68						$ 0.22	$ 0.23	$ 0.23	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 1.00
Dividend Payable	$ 47	$ 95

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Financial Statements of Parent Company Guarantor (Tables)

3 Months Ended

Mar. 30, 2013

Condensed Consolidating Statement of Operations and Comprehensive Income

Pentair Ltd. and Subsidiaries

Condensed Consolidating Statement of Operations and Comprehensive Income (Loss)

Three months ended March 30, 2013

In millions	Parent Company Guarantor			Subsidiary Issuer			Non-guarantor Subsidiaries			Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Net sales	$	—		$	—		$	1,774		$	—		$	1,774
Cost of goods sold		—			—			1,250			—			1,250
Gross profit		—			—			524			—			524
Selling, general and administrative		(1	)		3			414			—			416
Research and development		—			—			34			—			34
Operating (loss) income		1			(3	)		76			—			74
Loss (earnings) from investment in subsidiaries		(51	)		(55	)		—			106			—
Other (income) expense:
Gain on sale of business		—			—			(17	)		—			(17)
Net interest expense		—			3			14			—			17
Income (loss) from continuing operations before income taxes and noncontrolling interest		52			49			79			(106	)		74
Provision for income taxes		—			—			21			—			21
Net income (loss) before noncontrolling interest		52			49			58			(106	)		53
Noncontrolling interest		—			—			1			—			1
Net income (loss) attributable to Pentair Ltd.	$	52			49		$	57		$	(106	)	$	52
Comprehensive income (loss), net of tax
Net income (loss) before noncontrolling interest	$	52		$	49		$	58		$	(106	)	$	53
Changes in cumulative translation adjustment		(76	)		(76	)		(76	)		152			(76)
Changes in market value of derivative financial instruments		1			1			1			(2	)		1
Total comprehensive income (loss)		(23	)		(26	)		(17	)		44			(22)
Less: Comprehensive income attributable to noncontrolling interest		—			—			1			—			1
Comprehensive income (loss) attributable to Pentair Ltd.	$	(23	)	$	(26	)	$	(18	)	$	44		$	(23	)

Condensed Consolidating Balance Sheet

Pentair Ltd. and Subsidiaries

Condensed Consolidating Balance Sheet

March 30, 2013

In millions	Parent Company Guarantor		Subsidiary Issuer		Non-guarantor Subsidiaries		Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Assets
Current assets
Cash and cash equivalents	$	—	$	—	$	215	$	—		$	215
Accounts and notes receivable, net		18		10		1,507		(131	)		1,404
Inventories		—		—		1,327		—			1,327
Other current assets		1		—		343		—			344
Total current assets		19		10		3,392		(131	)		3,290
Property, plant and equipment, net		—		—		1,222		—			1,222
Other assets
Investments in subsidiaries		6,356		7,469		—		(13,825	)		—
Goodwill		—		—		4,867		—			4,867
Intangibles, net		—		—		1,859		—			1,859
Other non-current assets		31		1,551		475		(1,574	)		483
Total other assets		6,387		9,020		7,201		(15,399	)		7,209
Total assets	$	6,406	$	9,030	$	11,815	$	(15,530	)	$	11,721
Liabilities and Equity
Current liabilities
Current maturities of long-term debt and short-term borrowings	$	—		—		6		—		$	6
Accounts payable		99		4		598		(121	)		580
Employee compensation and benefits		—		—		264		—			264
Other current liabilities		48		14		571		—			633
Total current liabilities		147		18		1,439		(121	)		1,483
Other liabilities
Long-term debt		—		2,400		1,745		(1,553	)		2,592
Pension and other post-retirement compensation and benefits		—		—		370		—			370
Deferred tax liabilities		—		—		481		—			481
Other non-current liabilities		31		—		452		(31	)		452
Total liabilities		178		2,418		4,487		(1,705	)		5,378
Equity
Shareholders’ equity attributable to Pentair Ltd. and subsidiaries		6,228		6,612		7,213		(13,825	)		6,228
Noncontrolling interest		—		—		115		—			115
Total equity		6,228		6,612		7,328		(13,825	)		6,343
Total liabilities and equity	$	6,406	$	9,030	$	11,815	$	(15,530	)	$	11,721

Pentair Ltd. and Subsidiaries

Condensed Consolidating Balance Sheet

December 31, 2012

In millions	Parent Company Guarantor		Subsidiary Issuer		Non-guarantor Subsidiaries		Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Assets
Current assets
Cash and cash equivalents	$	—	$	—	$	261	$	—		$	261
Accounts and notes receivable, net		20		1,459		1,351		(1,535	)		1,295
Inventories		—		—		1,379		—			1,379
Other current assets		2		—		322		—			324
Total current assets		22		1,459		3,313		(1,535	)		3,259
Property, plant and equipment, net		—		—		1,224		—			1,224
Other assets
Investments in subsidiaries		6,492		7,470		—		(13,962	)		—
Goodwill		—		—		4,895		—			4,895
Intangibles, net		—		—		1,910		—			1,910
Other non-current assets		31		6		481		(31	)		487
Total other assets		6,523		7,476		7,286		(13,993	)		7,292
Total assets	$	6,545	$	8,935	$	11,823	$	(15,528	)	$	11,775
Liabilities and Equity
Current liabilities
Current maturities of long-term debt and short-term borrowings	$	—	$	—	$	3	$	—		$	3
Accounts payable		54		2		590		(76	)		570
Employee compensation and benefits		—		—		294		—			294
Other current liabilities		97		11		564		—			672
Total current liabilities		151		13		1,451		(76	)		1,539
Other liabilities
Long-term debt		—		2,298		1,615		(1,459	)		2,454
Pension and other post-retirement compensation and benefits		—		—		378		—			378
Deferred tax liabilities		—		—		488		—			488
Other non-current liabilities		31		—		437		(31	)		437
Total liabilities		182		2,311		4,369		(1,566	)		5,296
Equity
Shareholders’ equity attributable to Pentair Ltd. and subsidiaries		6,363		6,624		7,338		(13,962	)		6,363
Noncontrolling interest		—		—		116		—			116
Total equity		6,363		6,624		7,454		(13,962	)		6,479
Total liabilities and equity	$	6,545	$	8,935	$	11,823	$	(15,528	)	$	11,775

Condensed Consolidating Statement of Cash Flows

Pentair Ltd. and Subsidiaries

Condensed Consolidating Statement of Cash Flows

Three months ended March 30, 2013

In millions	Parent Company Guarantor			Subsidiary Issuer			Non-guarantor Subsidiaries			Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Operating activities
Net cash provided by (used for) operating activities	$	95		$	51		$	(20	)	$	(106	)	$	20
Investing activities
Capital expenditures		—			—			(50	)		—			(50)
Proceeds from sale of property and equipment		—			—			1			—			1
Proceeds from sale of business, net		—			—			30			—			30
Net cash provided by (used for) investing activities		—			—			(19	)		—			(19	)
Financing activities
Net receipts of short-term borrowings		—			—			3			—			3
Net receipts of commercial paper and revolving long-term debt		—			103			37			—			140
Repayment of long-term debt		—			—			(2	)		—			(2)
Debt issuance costs		—			(1	)		—			—			(1)
Net change in advances to subsidiaries		(48	)		(153	)		95			106			—
Shares issued to employees, net of shares withheld		—			—			11			—			11
Repurchases of common shares		—			—			(140	)		—			(140)
Dividends paid		(47	)		—			—			—			(47)
Distributions to noncontrolling interest		—			—			(2	)		—			(2)
Net cash provided by (used for) financing activities		(95	)		(51	)		2			106			(38)
Effect of exchange rate changes on cash and cash equivalents		—			—			(9	)		—			(9)
Change in cash and cash equivalents		—			—			(46	)		—			(46)
Cash and cash equivalents, beginning of period		—			—			261			—			261
Cash and cash equivalents, end of period	$	—		$	—		$	215		$	—		$	215

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Condensed Consolidating Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 215	$ 261	$ 55	$ 50
Accounts and notes receivable, net	1,404	1,295
Inventories	1,327	1,379
Other current assets	344	324
Total current assets	3,290	3,259
Property, plant and equipment, net	1,222	1,224
Other assets
Goodwill	4,867	4,895
Intangibles, net	1,859	1,910
Other non-current assets	483	487
Total other assets	7,209	7,292
Total assets	11,721	11,775
Current liabilities
Current maturities of long-term debt and short-term borrowings	6	3
Accounts payable	580	570
Employee compensation and benefits	264	294
Other current liabilities	633	672
Total current liabilities	1,483	1,539
Other liabilities
Long-term debt	2,592	2,454
Pension and other post-retirement compensation and benefits	370	378
Deferred tax liabilities	481	488
Other non-current liabilities	452	437
Total liabilities	5,378	5,296
Equity
Shareholders' equity attributable to Pentair Ltd. and subsidiaries	6,228	6,363
Noncontrolling interest	115	116
Total equity	6,343	6,479	2,144	2,047
Total liabilities and equity	11,721	11,775
Parent Company Guarantor
Current assets
Accounts and notes receivable, net	18	20
Other current assets	1	2
Total current assets	19	22
Other assets
Investments in subsidiaries	6,356	6,492
Other non-current assets	31	31
Total other assets	6,387	6,523
Total assets	6,406	6,545
Current liabilities
Accounts payable	99	54
Other current liabilities	48	97
Total current liabilities	147	151
Other liabilities
Other non-current liabilities	31	31
Total liabilities	178	182
Equity
Shareholders' equity attributable to Pentair Ltd. and subsidiaries	6,228	6,363
Total equity	6,228	6,363
Total liabilities and equity	6,406	6,545
Subsidiary Issuer
Current assets
Accounts and notes receivable, net	10	1,459
Total current assets	10	1,459
Other assets
Investments in subsidiaries	7,469	7,470
Other non-current assets	1,551	6
Total other assets	9,020	7,476
Total assets	9,030	8,935
Current liabilities
Accounts payable	4	2
Other current liabilities	14	11
Total current liabilities	18	13
Other liabilities
Long-term debt	2,400	2,298
Total liabilities	2,418	2,311
Equity
Shareholders' equity attributable to Pentair Ltd. and subsidiaries	6,612	6,624
Total equity	6,612	6,624
Total liabilities and equity	9,030	8,935
Non-Guarantor Subsidiaries
Current assets
Cash and cash equivalents	215	261
Accounts and notes receivable, net	1,507	1,351
Inventories	1,327	1,379
Other current assets	343	322
Total current assets	3,392	3,313
Property, plant and equipment, net	1,222	1,224
Other assets
Goodwill	4,867	4,895
Intangibles, net	1,859	1,910
Other non-current assets	475	481
Total other assets	7,201	7,286
Total assets	11,815	11,823
Current liabilities
Current maturities of long-term debt and short-term borrowings	6	3
Accounts payable	598	590
Employee compensation and benefits	264	294
Other current liabilities	571	564
Total current liabilities	1,439	1,451
Other liabilities
Long-term debt	1,745	1,615
Pension and other post-retirement compensation and benefits	370	378
Deferred tax liabilities	481	488
Other non-current liabilities	452	437
Total liabilities	4,487	4,369
Equity
Shareholders' equity attributable to Pentair Ltd. and subsidiaries	7,213	7,338
Noncontrolling interest	115	116
Total equity	7,328	7,454
Total liabilities and equity	11,815	11,823
Eliminations
Current assets
Accounts and notes receivable, net	(131)	(1,535)
Total current assets	(131)	(1,535)
Other assets
Investments in subsidiaries	(13,825)	(13,962)
Other non-current assets	(1,574)	(31)
Total other assets	(15,399)	(13,993)
Total assets	(15,530)	(15,528)
Current liabilities
Accounts payable	(121)	(76)
Total current liabilities	(121)	(76)
Other liabilities
Long-term debt	(1,553)	(1,459)
Other non-current liabilities	(31)	(31)
Total liabilities	(1,705)	(1,566)
Equity
Shareholders' equity attributable to Pentair Ltd. and subsidiaries	(13,825)	(13,962)
Total equity	(13,825)	(13,962)
Total liabilities and equity	$ (15,530)	$ (15,528)

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Financial Statements of Parent Company Guarantor

3 Months Ended

Mar. 30, 2013

Financial Statements of Parent Company Guarantor

15. Financial Statements of Parent Company Guarantor

Pentair Ltd. (the “Parent Company Guarantor”), fully and unconditionally, guarantees the Notes of Pentair Finance S.A. (the “Subsidiary Issuer”). The Subsidiary Issuer is a Luxembourg public limited liability company formed in January 2012 and 100 percent-owned subsidiary of the Parent Company Guarantor.

The following supplemental financial information sets forth the financial information of:

• Parent Company Guarantor;

• Subsidiary Issuer;

• Non-guarantor subsidiaries of Pentair Ltd. on a combined basis;

• Consolidating entries and eliminations representing adjustments to:

a. eliminate intercompany transactions between or among the Parent Company Guarantor, the Subsidiary Issuer and the non-guarantor subsidiaries;

b. eliminate the investments in subsidiaries; and

c. record consolidating entries.

• Pentair Ltd. and subsidiaries on a consolidated basis.

The following present the Company’s Condensed Consolidating Statement of Operations and Comprehensive Income (Loss), Condensed Consolidating Balance Sheets and Condensed Consolidating Statement of Cash Flows. Since the Parent Company Guarantor and the Subsidiary Issuer were acquired in the Merger, there was no guarantee of the Notes in effect in prior periods. The historical consolidated financial statements of Pentair Ltd. prior to the Merger include all non-guarantor subsidiaries. Consequently, no consolidating financial information for the three months ended March 31, 2012 is presented.

Pentair Ltd. and Subsidiaries

Condensed Consolidating Statement of Operations and Comprehensive Income (Loss)

Three months ended March 30, 2013

In millions	Parent Company Guarantor			Subsidiary Issuer			Non-guarantor Subsidiaries			Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Net sales	$	—		$	—		$	1,774		$	—		$	1,774
Cost of goods sold		—			—			1,250			—			1,250
Gross profit		—			—			524			—			524
Selling, general and administrative		(1	)		3			414			—			416
Research and development		—			—			34			—			34
Operating (loss) income		1			(3	)		76			—			74
Loss (earnings) from investment in subsidiaries		(51	)		(55	)		—			106			—
Other (income) expense:
Gain on sale of business		—			—			(17	)		—			(17)
Net interest expense		—			3			14			—			17
Income (loss) from continuing operations before income taxes and noncontrolling interest		52			49			79			(106	)		74
Provision for income taxes		—			—			21			—			21
Net income (loss) before noncontrolling interest		52			49			58			(106	)		53
Noncontrolling interest		—			—			1			—			1
Net income (loss) attributable to Pentair Ltd.	$	52			49		$	57		$	(106	)	$	52
Comprehensive income (loss), net of tax
Net income (loss) before noncontrolling interest	$	52		$	49		$	58		$	(106	)	$	53
Changes in cumulative translation adjustment		(76	)		(76	)		(76	)		152			(76)
Changes in market value of derivative financial instruments		1			1			1			(2	)		1
Total comprehensive income (loss)		(23	)		(26	)		(17	)		44			(22)
Less: Comprehensive income attributable to noncontrolling interest		—			—			1			—			1
Comprehensive income (loss) attributable to Pentair Ltd.	$	(23	)	$	(26	)	$	(18	)	$	44		$	(23	)

Pentair Ltd. and Subsidiaries

Condensed Consolidating Balance Sheet

March 30, 2013

In millions	Parent Company Guarantor		Subsidiary Issuer		Non-guarantor Subsidiaries		Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Assets
Current assets
Cash and cash equivalents	$	—	$	—	$	215	$	—		$	215
Accounts and notes receivable, net		18		10		1,507		(131	)		1,404
Inventories		—		—		1,327		—			1,327
Other current assets		1		—		343		—			344
Total current assets		19		10		3,392		(131	)		3,290
Property, plant and equipment, net		—		—		1,222		—			1,222
Other assets
Investments in subsidiaries		6,356		7,469		—		(13,825	)		—
Goodwill		—		—		4,867		—			4,867
Intangibles, net		—		—		1,859		—			1,859
Other non-current assets		31		1,551		475		(1,574	)		483
Total other assets		6,387		9,020		7,201		(15,399	)		7,209
Total assets	$	6,406	$	9,030	$	11,815	$	(15,530	)	$	11,721
Liabilities and Equity
Current liabilities
Current maturities of long-term debt and short-term borrowings	$	—		—		6		—		$	6
Accounts payable		99		4		598		(121	)		580
Employee compensation and benefits		—		—		264		—			264
Other current liabilities		48		14		571		—			633
Total current liabilities		147		18		1,439		(121	)		1,483
Other liabilities
Long-term debt		—		2,400		1,745		(1,553	)		2,592
Pension and other post-retirement compensation and benefits		—		—		370		—			370
Deferred tax liabilities		—		—		481		—			481
Other non-current liabilities		31		—		452		(31	)		452
Total liabilities		178		2,418		4,487		(1,705	)		5,378
Equity
Shareholders’ equity attributable to Pentair Ltd. and subsidiaries		6,228		6,612		7,213		(13,825	)		6,228
Noncontrolling interest		—		—		115		—			115
Total equity		6,228		6,612		7,328		(13,825	)		6,343
Total liabilities and equity	$	6,406	$	9,030	$	11,815	$	(15,530	)	$	11,721

Pentair Ltd. and Subsidiaries

Condensed Consolidating Statement of Cash Flows

Three months ended March 30, 2013

In millions	Parent Company Guarantor			Subsidiary Issuer			Non-guarantor Subsidiaries			Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Operating activities
Net cash provided by (used for) operating activities	$	95		$	51		$	(20	)	$	(106	)	$	20
Investing activities
Capital expenditures		—			—			(50	)		—			(50)
Proceeds from sale of property and equipment		—			—			1			—			1
Proceeds from sale of business, net		—			—			30			—			30
Net cash provided by (used for) investing activities		—			—			(19	)		—			(19	)
Financing activities
Net receipts of short-term borrowings		—			—			3			—			3
Net receipts of commercial paper and revolving long-term debt		—			103			37			—			140
Repayment of long-term debt		—			—			(2	)		—			(2)
Debt issuance costs		—			(1	)		—			—			(1)
Net change in advances to subsidiaries		(48	)		(153	)		95			106			—
Shares issued to employees, net of shares withheld		—			—			11			—			11
Repurchases of common shares		—			—			(140	)		—			(140)
Dividends paid		(47	)		—			—			—			(47)
Distributions to noncontrolling interest		—			—			(2	)		—			(2)
Net cash provided by (used for) financing activities		(95	)		(51	)		2			106			(38)
Effect of exchange rate changes on cash and cash equivalents		—			—			(9	)		—			(9)
Change in cash and cash equivalents		—			—			(46	)		—			(46)
Cash and cash equivalents, beginning of period		—			—			261			—			261
Cash and cash equivalents, end of period	$	—		$	—		$	215		$	—		$	215

Pentair Ltd. and Subsidiaries

Condensed Consolidating Balance Sheet

December 31, 2012

In millions	Parent Company Guarantor		Subsidiary Issuer		Non-guarantor Subsidiaries		Eliminations			Pentair Ltd. and Subsidiaries Consolidated
Assets
Current assets
Cash and cash equivalents	$	—	$	—	$	261	$	—		$	261
Accounts and notes receivable, net		20		1,459		1,351		(1,535	)		1,295
Inventories		—		—		1,379		—			1,379
Other current assets		2		—		322		—			324
Total current assets		22		1,459		3,313		(1,535	)		3,259
Property, plant and equipment, net		—		—		1,224		—			1,224
Other assets
Investments in subsidiaries		6,492		7,470		—		(13,962	)		—
Goodwill		—		—		4,895		—			4,895
Intangibles, net		—		—		1,910		—			1,910
Other non-current assets		31		6		481		(31	)		487
Total other assets		6,523		7,476		7,286		(13,993	)		7,292
Total assets	$	6,545	$	8,935	$	11,823	$	(15,528	)	$	11,775
Liabilities and Equity
Current liabilities
Current maturities of long-term debt and short-term borrowings	$	—	$	—	$	3	$	—		$	3
Accounts payable		54		2		590		(76	)		570
Employee compensation and benefits		—		—		294		—			294
Other current liabilities		97		11		564		—			672
Total current liabilities		151		13		1,451		(76	)		1,539
Other liabilities
Long-term debt		—		2,298		1,615		(1,459	)		2,454
Pension and other post-retirement compensation and benefits		—		—		378		—			378
Deferred tax liabilities		—		—		488		—			488
Other non-current liabilities		31		—		437		(31	)		437
Total liabilities		182		2,311		4,369		(1,566	)		5,296
Equity
Shareholders’ equity attributable to Pentair Ltd. and subsidiaries		6,363		6,624		7,338		(13,962	)		6,363
Noncontrolling interest		—		—		116		—			116
Total equity		6,363		6,624		7,454		(13,962	)		6,479
Total liabilities and equity	$	6,545	$	8,935	$	11,823	$	(15,528	)	$	11,775

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Acquisitions and Divestitures - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended									1 Months Ended	3 Months Ended				1 Months Ended			1 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013 Maximum	Mar. 30, 2013 Water & Fluid Solutions	Mar. 31, 2012 Water & Fluid Solutions	Mar. 30, 2013 Technical Solutions	Mar. 31, 2012 Technical Solutions	Mar. 30, 2013 Valves & Controls	Mar. 30, 2012 Transaction Costs	Sep. 28, 2012 Tyco Flow Control International, Ltd	Mar. 30, 2013 Tyco Flow Control International, Ltd	Sep. 28, 2012 Tyco Flow Control International, Ltd Water & Fluid Solutions	Sep. 28, 2012 Tyco Flow Control International, Ltd Technical Solutions	Sep. 28, 2012 Tyco Flow Control International, Ltd Valves & Controls	Sep. 28, 2012 Tyco Flow Control International, Ltd Customer Relationship	Sep. 28, 2012 Tyco Flow Control International, Ltd Proprietary technology	Sep. 28, 2012 Tyco Flow Control International, Ltd Customer Backlog	Sep. 28, 2012 Tyco Flow Control International, Ltd Customer Backlog Maximum	Sep. 28, 2012 Tyco Flow Control International, Ltd Trade names intangibles	Oct. 04, 2012 Tyco Flow Control Luxembourg	Dec. 31, 2012 Water & Fluid Solutions
Business Acquisition [Line Items]
Percentage of ownership										100.00%
Shares issued for stock acquisition										110.9
Net sales	$ 1,774	$ 858		$ 782	$ 587	$ 410	$ 273	$ 586			$ 888
Income (loss) from continuing operations											22
Net impact of adjustments on preliminary allocation of goodwill			1
Goodwill										2,526		321	871	1,334							81
Intangible assets										1,425					362	906	116		41
Weighted average useful life															14 years 2 months 12 days	13 years 8 months 12 days		1 year
Proforma adjustments for nonrecurring items									12
Remaining percentage of ownership acquired																				25.00%
Cash paid for the purchase of Tyco Flow Control Luxembourg S.a.R.L. ("KEF")																				100
Percentage of ownership before wholly acquired																				75.00%
Business acquisition purchase price										4,923											121
Goodwill tax deductible																					67
Cash sales price of business	30
Net gain from sale of business	17
Goodwill written off from sale	$ 5

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Acquisitions and Divestitures (Tables)

3 Months Ended

Mar. 30, 2013

Estimated Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes our preliminary fair values of the assets acquired and liabilities assumed in the Merger:

In millions
Cash and cash equivalents	$	692
Accounts and notes receivable		774
Inventories		1,045
Other current assets		98
Property, plant and equipment		820
Goodwill		2,526
Intangibles		1,425
Other non-current assets		275
Current liabilities		(865)
Long-term debt		(915)
Income taxes, including current and deferred		(361)
Other liabilities and redeemable noncontrolling interest		(591)
Total purchase price	$	4,923

Pro Forma Consolidated Condensed Financial Results of Operations

The following unaudited pro forma condensed consolidated financial results of operations are presented as if the Merger had been completed on January 1, 2011:

	Three months ended
In millions, except per-share data	March 31, 2012
Pro forma net sales	$	1,857
Pro forma net income attributable to Pentair Ltd.		107
Diluted earnings per common share attributable to Pentair Ltd.		0.51

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Condensed Consolidated Statements of Changes in Equity (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Changes in market value of derivative financial instruments, tax	$ 0	$ 1

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Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 215	$ 261
Accounts and notes receivable, net of allowances of $42 and $37, respectively	1,404	1,295
Inventories	1,327	1,379
Other current assets	344	324
Total current assets	3,290	3,259
Property, plant and equipment, net	1,222	1,224
Other assets
Goodwill	4,867	4,895
Intangibles, net	1,859	1,910
Other non-current assets	483	487
Total other assets	7,209	7,292
Total assets	11,721	11,775
Current liabilities
Current maturities of long-term debt and short-term borrowings	6	3
Accounts payable	580	570
Employee compensation and benefits	264	294
Other current liabilities	633	672
Total current liabilities	1,483	1,539
Other liabilities
Long-term debt	2,592	2,454
Pension and other post-retirement compensation and benefits	370	378
Deferred tax liabilities	481	488
Other non-current liabilities	452	437
Total liabilities	5,378	5,296
Equity
Common shares CHF 0.50 par value, 213.0 authorized and issued at March 30, 2013 and December 31, 2012, respectively	113	113
Common shares held in treasury, 8.5 and 6.9 shares at March 30, 2013 and December 31, 2012, respectively	(406)	(315)
Capital contribution reserve	5,264	5,285
Retained earnings	1,344	1,292
Accumulated other comprehensive income (loss)	(87)	(12)
Shareholders' equity attributable to Pentair Ltd.	6,228	6,363
Noncontrolling interest	115	116
Total equity	6,343	6,479
Total liabilities and equity	$ 11,721	$ 11,775

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Income Taxes

3 Months Ended

Mar. 30, 2013

Income Taxes

10. Income Taxes

The provision for income taxes consists of provisions for Swiss federal and international income taxes. We operate in an international environment with operations in various locations outside Switzerland. Accordingly, the consolidated income tax rate is a composite rate reflecting the earnings in the various locations and the applicable rates.

The effective income tax rate for the three months ended March 30, 2013 was 28.4% compared to 13.7% for the three months ended March 31, 2012. Our effective tax rate was higher due to the favorable resolution of U.S. federal and state tax audits during the three months ended March 31, 2012 which was not recurring during the three months ended March 30, 2013, and the timing of losses in jurisdictions where we recognize no tax benefits. The increases were partially offset by the mix of global earnings, including the impact of the Merger.

We continue to actively pursue initiatives to reduce our effective tax rate. The tax rate in any quarter can be affected positively or negatively by adjustments that are required to be reported in the specific quarter of resolution.

The liability for uncertain tax positions was $55 million and $54 million at March 30, 2013 and December 31, 2012, respectively. We record penalties and interest related to unrecognized tax benefits in Provision for income taxes and Net interest expense, respectively, on the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss), which is consistent with our past practices.

Tax sharing agreement and other income tax matters

In connection with the Distribution, we entered into a tax sharing agreement (the “2012 Tax Sharing Agreement”) with Tyco and The ADT Corporation (“ADT”), which governs the rights and obligations of Tyco, ADT and us for certain pre-Distribution tax liabilities, including Tyco’s obligations under a separate tax sharing agreement (the “2007 Tax Sharing Agreement”) that Tyco, Covidien Ltd. (“Covidien”) and TE Connectivity Ltd. (“TE Connectivity”) entered into in 2007. The 2012 Tax Sharing Agreement provides that we, Tyco and ADT will share (i) certain pre-Distribution income tax liabilities that arise from adjustments made by tax authorities to our, Tyco’s and ADT’s U.S. income tax returns, and (ii) payments required to be made by Tyco in respect to the 2007 Tax Sharing Agreement (collectively, “Shared Tax Liabilities”). Tyco is responsible for the first $500 million of Shared Tax Liabilities. We and ADT will share 42% and 58%, respectively, of the next $225 million of Shared Tax Liabilities. We, ADT and Tyco will share 20%, 27.5% and 52.5%, respectively, of Shared Tax Liabilities above $725 million.

In the event the Distribution, the spin-off of ADT, or certain internal transactions undertaken in connection therewith were determined to be taxable as a result of actions taken after the Distribution by us, ADT or Tyco, the party responsible for such failure would be responsible for all taxes imposed on us, ADT or Tyco as a result thereof. Taxes resulting from the determination that the Distribution, the spin-off of ADT, or any internal transaction is taxable are referred to herein as “Distribution Taxes.” If such failure is not the result of actions taken after the Distribution by us, ADT or Tyco, then we, ADT and Tyco would be responsible for any Distribution Taxes imposed on us, ADT or Tyco as a result of such determination in the same manner and in the same proportions as the Shared Tax Liabilities. ADT will have sole responsibility for any income tax liability arising as a result of Tyco’s acquisition of Brink’s Home Security Holdings, Inc. (“BHS”) in May 2010, including any liability of BHS under the tax sharing agreement between BHS and The Brink’s Company dated October 31, 2008 (collectively, the “BHS Tax Liabilities”). Costs and expenses associated with the management of Shared Tax Liabilities, Distribution Taxes and BHS Tax Liabilities will generally be shared 20% by us, 27.5% by ADT and 52.5% by Tyco. We are responsible for all of our own taxes that are not shared pursuant to the 2012 Tax Sharing Agreement’s sharing formulae. In addition, Tyco and ADT are responsible for their tax liabilities that are not subject to the 2012 Tax Sharing Agreement’s sharing formulae.

The 2012 Tax Sharing Agreement also provides that, if any party were to default in its obligation to another party to pay its share of the distribution taxes that arise as a result of no party’s fault, each non-defaulting party would be required to pay, equally with any other non-defaulting party, the amounts in default. In addition, if another party to the 2012 Tax Sharing Agreement that is responsible for all or a portion of an income tax liability were to default in its payment of such liability to a taxing authority, we could be legally liable under applicable tax law for such liabilities and required to make additional tax payments. Accordingly, under certain circumstances, we may be obligated to pay amounts in excess of our agreed-upon share of our, Tyco’s and ADT’s tax liabilities.

With respect to years prior to and including the 2007 separation of Covidien and TE Connectivity by Tyco, tax authorities have raised issues and proposed tax adjustments that are generally subject to the sharing provisions of the 2007 Tax Sharing Agreement and which may require Tyco to make a payment to a taxing authority, Covidien or TE Connectivity. With respect to adjustments raised by the IRS, although Tyco has resolved a substantial number of these adjustments, a few significant items remain open with respect to the audit of the 1997 through 2004 years. As of the date hereof, it is unlikely that Tyco will be able to resolve all the open items, which primarily involve the treatment of certain intercompany debt issued during the period, through the IRS appeals process. As a result, Tyco expects to litigate these matters once it receives the requisite statutory notices from the IRS, which may occur as soon as within the next three months. However, the ultimate resolution of these matters is uncertain and could result in Tyco being responsible for a greater amount than it expects under the 2007 Tax Sharing Agreement. To the extent we are responsible for any Shared Tax Liability or Distribution Tax, there could be a material adverse impact on our financial condition, results of operations, or cash flows in future reporting periods.

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Document and Entity Information	3 Months Ended
	Mar. 30, 2013
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1
Trading Symbol	PNR
Entity Registrant Name	PENTAIR LTD
Entity Central Index Key	0000077360
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	204,522,310

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Benefit Plans

3 Months Ended

Mar. 30, 2013

Benefit Plans

11. Benefit Plans

Components of net periodic benefit cost for our pension plans for the three months ended March 30, 2013 and March 31, 2012 were as follows:

	Three months ended
	U.S. pension plans						Non-U.S. pension plans
In millions	March 30, 2013			March 31, 2012			March 30, 2013			March 31, 2012
Service cost	$	4		$	3		$	2		$	1
Interest cost		3			7			5			1
Expected return on plan assets		(2	)		(7	)		(4	)		—
Net periodic benefit cost	$	5		$	3		$	3		$	2

Components of net periodic benefit cost for our other post-retirement plans for the three months ended March 30, 2013 and March 31, 2012 were not material.

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Condensed Consolidated Balance Sheets (Parenthetical) In Millions, except Per Share data, unless otherwise specified	Mar. 30, 2013 USD ($)	Mar. 30, 2013 CHF	Dec. 31, 2012 USD ($)	Dec. 31, 2012 CHF
Accounts and notes receivable, allowances	$ 42		$ 37
Common shares, par value		0.50		0.50
Common shares, authorized	213.0	213.0	213.0	213.0
Common shares, issued	213.0	213.0	213.0	213.0
Treasury stock, shares	8.5	8.5	6.9	6.9

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Earnings Per Share

3 Months Ended

Mar. 30, 2013

Earnings Per Share

5. Earnings Per Share

Basic and diluted earnings per share were calculated as follows:

	Three months ended
In millions, except per-share data	March 30,     2013		March 31,     2012
Net income attributable to Pentair Ltd.	$	52	$	62
Weighted average common shares outstanding
Basic		204.8		98.6
Dilutive impact of stock options and restricted stock units (1)		3.4		1.8
Diluted		208.2		100.4
Earnings per common share attributable to Pentair Ltd.
Basic earnings per common share	$	0.25	$	0.63
Diluted earnings per common share	$	0.25	$	0.62
Anti-dilutive stock options and restricted stock units (2)		1.0		2.5

(1) The incremental share impact from stock options and restricted stock units was computed using the treasury stock method.

(2) Stock options and restricted stock units that were not dilutive were excluded from our calculation of diluted weighted average shares.

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Restructuring

3 Months Ended

Mar. 30, 2013

Restructuring

4. Restructuring

During the three months ended March 30, 2013 and the year ended December 31, 2012, we initiated certain business restructuring initiatives aimed at reducing our fixed cost structure and realigning our business. The 2013 initiatives included the reduction in hourly and salaried headcount of approximately 400 employees, which included 100 in Water & Fluid Solutions, 100 in Valves & Controls and 200 in Technical Solutions. The 2012 initiatives included the reduction in hourly and salaried headcount of approximately 1,000 employees, which included 500 in Water & Fluid Solutions, 300 in Valves & Controls and 200 in Technical Solutions.

Restructuring related costs included in Selling, general and administrative expenses in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) included costs for severance and other restructuring costs as follows:

	Three months ended
In millions	March 30,     2013		March 31,     2012
Severance and related costs	$	20	$	—
Other		2		—
Total restructuring costs	$	22	$	—

Total restructuring costs related to Water & Fluid Solutions, Valves & Controls and Technical Solutions were $7 million, $5 million and $10 million, respectively, for the three months ended March 30, 2013.

Activity in the restructuring accrual recorded in Other current liabilities and Employee compensation and benefits in the Condensed Consolidated Balance Sheets is summarized as follows for the three months ended March 30, 2013:

In millions	March 30,     2013
Beginning balance	$	57
Costs incurred		20
Cash payments and other		(18)
Ending balance	$	59

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Basis of Presentation and Responsibility for Interim Financial Statements (Policies)

3 Months Ended

Mar. 30, 2013

New Accounting Standards

New Accounting Standards

In February 2013, the FASB issued authoritative guidance surrounding the presentation of items reclassified from Accumulated other comprehensive income (loss) (“AOCI”) to net income. This guidance requires entities to disclose, either in the notes to the consolidated financial statements or parenthetically on the face of the statement that reports comprehensive income, items reclassified out of AOCI and into net income in their entirety and the effect of the reclassification on each affected net income line item. In addition, for AOCI reclassification items that are not reclassified in their entirety into net income, a cross reference to other required disclosures is required. This guidance was effective for fiscal years and interim periods beginning after December 15, 2012. The adoption of this guidance on January 1, 2013 did not impact our financial condition or results of operations. The reclassifications out of AOCI and into net income were not material for the three months ended March 30, 2013.

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Shareholders' Equity

3 Months Ended

Mar. 30, 2013

Shareholders' Equity

12. Shareholders’ Equity

Share repurchases

Prior to the closing of the Merger, our board of directors, and Tyco as our sole shareholder, authorized the repurchase of our common shares with a maximum aggregate value of $400 million following the closing of the Merger. This authorization does not have an expiration date. On October 1, 2012, our board of directors authorized the repurchase of our common shares with a maximum aggregate value of $800 million. This authorization expires on December 31, 2015 and is in addition to the $400 million share repurchase authorization. As of March 30, 2013, we had $726 million remaining available for share repurchases under these authorizations. During the quarter ended March 30, 2013, we repurchased 2.7 million of our common shares for $140 million pursuant to these authorizations.

Dividends payable

Prior to the consummation of the Merger, our board of directors proposed, and Tyco as our then sole shareholder, authorized us to pay quarterly cash dividends through the first annual general meeting of our shareholders in 2013. The authorization provided that dividends of $0.68 per share will be made out of our Capital contribution reserve equity position in our statutory accounts to our shareholders in quarterly installments of $0.22 for the fourth quarter of 2012 and $0.23 for each of the first and second quarters of 2013. The balance of dividends payable included in Other current liabilities on our Consolidated Balance Sheets was $47 million at March 30, 2013.

On February 26, 2013, our board of directors recommended that our shareholders approve at our 2013 annual meeting of shareholders a proposal to pay quarterly cash dividends through the second quarter of 2014. The proposal provides that dividends of $1.00 per share will be made out of our Capital contribution reserve equity position in our statutory accounts to our shareholders in quarterly installments of $0.25 for each of the third and fourth quarters of 2013 and first and second quarters of 2014.

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Debt

3 Months Ended

Mar. 30, 2013

Debt

8. Debt

Debt and the average interest rates on debt outstanding were as follows:

In millions	Average interest rate at March 30, 2013	Maturity Year	March 30, 2013			December 31, 2012
Commercial paper	0.577%	2017	$	527		$	425
Revolving credit facilities	1.296%	2017		37			—
Senior notes - fixed rate	1.350%	2015		350			350
Senior notes - fixed rate	1.875%	2017		350			350
Senior notes - fixed rate	2.650%	2019		250			250
Senior notes - fixed rate	5.000%	2021		500			500
Senior notes - fixed rate	3.150%	2022		550			550
Other	0.697%	2014-2030		12			8
Capital lease obligations	4.267%	2015-2025		22			24
Total debt				2,598			2,457
Less: Current maturities and short-term borrowings				(6	)		(3)
Long-term debt			$	2,592		$	2,454

The 1.35% Senior Notes due 2015, 1.875% Senior Notes due 2017, 2.65% Senior Notes due 2019, 5.00% Senior Notes due 2021 and 3.15% Senior Notes due 2022 (collectively, the “Notes”) were all issued in transactions exempt from the registration requirements of the Securities Act of 1933, as amended. In March 2013, Pentair Ltd. and our 100 percent-owned subsidiary, Pentair Finance S.A. (“PFSA”), filed a Registration Statement with the SEC offering to exchange the Notes for new, registered Notes. The exchange offer expired on April 19, 2013 and did not impact the aggregate principle amount of the Notes outstanding. The new, registered Notes issued in such exchange offer are guaranteed as to payment by Pentair Ltd.

In September 2012, Pentair, Inc. entered into a credit agreement providing for an unsecured, committed revolving credit facility (the “Credit Facility”) with initial maximum aggregate availability of up to $1,450 million. PFSA is authorized to sell short-term commercial paper notes to the extent availability exists under the Credit Facility. PFSA uses the Credit Facility as back-up liquidity to support 100% of commercial paper outstanding. As of March 30, 2013 and December 31, 2012, we had $527 million and $425 million, respectively, of commercial paper outstanding, all of which was classified as long-term as we have the intent and the ability to refinance such obligations on a long-term basis under the Credit Facility.

Total availability under the Credit Facility was $886 million as of March 30, 2013, which was not limited by any covenants contained in the Credit Facility’s credit agreement.

Our debt agreements contain certain financial covenants, the most restrictive of which are in the Credit Facility, including that we may not permit (i) the ratio of our consolidated debt plus synthetic lease obligations to our consolidated net income (excluding, among other things, non-cash gains and losses) before interest, taxes, depreciation, amortization, non-cash share-based compensation expense, and up to $40 million of costs and expenses incurred in connection with the Merger (“EBITDA”) for the four consecutive fiscal quarters then ended (the “Leverage Ratio”) to exceed 3.50 to 1.00 on the last day of each fiscal quarter, and (ii) the ratio of our EBITDA for the four consecutive fiscal quarters then ended to our consolidated interest expense, including consolidated yield or discount accrued as to outstanding securitization obligations (if any), for the same period to be less than 3.00 to 1.00 as of the end of each fiscal quarter. For purposes of the Leverage Ratio, the Credit Facility provides for the calculation of EBITDA giving pro forma effect to the Merger and certain acquisitions, divestitures and liquidations during the period to which such calculation relates. As of March 30, 2013, we were in compliance with all financial covenants in our debt agreements.

In addition to the Credit Facility, we have various other credit facilities with an aggregate availability of $88 million, of which $3 million was outstanding at March 30, 2013. Borrowings under these credit facilities bear interest at variable rates.

Debt outstanding at March 30, 2013 matures on a calendar year basis as follows:

	Q2 - Q4
In millions	2013		2014		2015		2016		2017		2018		Thereafter		Total
Contractual debt obligation maturities	$	3	$	—	$	350	$	—	$	917	$	—	$	1,306	$	2,576
Capital lease obligations		3		3		6		1		1		1		7		22
Total maturities	$	6	$	3	$	356	$	1	$	918	$	1	$	1,313	$	2,598

Capital lease obligations relate primarily to land and buildings and consist of total future minimum lease payments of $24 million less the imputed interest of $2 million as of March 30, 2013.

As of March 30, 2013 and December 31, 2012, assets under capital lease were $39 million and $36 million, respectively, less accumulated amortization of $6 million and $6 million, respectively, all of which were included in Property, plant and equipment, net on the Condensed Consolidated Balance Sheets.

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Financial Information By Reportable Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Net sales	$ 1,774	$ 858
Operating income (loss)	74	86
Water & Fluid Solutions
Segment Reporting Information [Line Items]
Net sales	782	587
Operating income (loss)	75	64
Valves & Controls
Segment Reporting Information [Line Items]
Net sales	586
Operating income (loss)	(19)
Technical Solutions
Segment Reporting Information [Line Items]
Net sales	410	273
Operating income (loss)	53	50
All Other Segments
Segment Reporting Information [Line Items]
Net sales	(4)	(2)
Operating income (loss)	$ (35)	$ (28)

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Supplemental Balance Sheet Information

3 Months Ended

Mar. 30, 2013

Supplemental Balance Sheet Information

6. Supplemental Balance Sheet Information

In millions	March 30,     2013		December 31,     2012
Inventories
Raw materials and supplies	$	616	$	616
Work-in-process		190		208
Finished goods		521		555
Total inventories	$	1,327	$	1,379
Other current assets
Cost in excess of billings	$	138	$	124
Prepaid expenses		100		95
Deferred income taxes		79		71
Other current assets		27		34
Total other current assets	$	344	$	324
Property, plant and equipment, net
Land and land improvements	$	247	$	248
Buildings and leasehold improvements		474		482
Machinery and equipment		1,087		1,091
Construction in progress		131		114
Total property, plant and equipment		1,939		1,935
Accumulated depreciation and amortization		717		711
Total property, plant and equipment, net	$	1,222	$	1,224
Other non-current assets
Asbestos-related insurance receivable	$	157	$	157
Deferred income taxes		100		89
Other non-current assets		226		241
Total other non-current assets	$	483	$	487
Other current liabilities
Deferred revenue and customer deposits	$	133	$	127
Dividends payable		47		95
Billings in excess of cost		66		61
Accrued warranty		53		54
Other current liabilities		334		335
Total other current liabilities	$	633	$	672
Other non-current liabilities
Asbestos-related liabilities	$	234	$	235
Taxes payable		50		49
Other non-current liabilities		168		153
Total other non-current liabilities	$	452	$	437

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Goodwill and Other Identifiable Intangible Assets

3 Months Ended

Mar. 30, 2013

Goodwill and Other Identifiable Intangible Assets

7. Goodwill and Other Identifiable Intangible Assets

The changes in the carrying amount of goodwill by segment were as follows:

In millions	December 31, 2012		Acquisitions/ divestitures			Foreign currency  translation/other			March 30, 2013
Water & Fluid Solutions	$	2,410	$	—		$	(21	)	$	2,389
Valves & Controls		1,334		—			—			1,334
Technical Solutions		1,151		(5	)		(2	)		1,144
Total goodwill	$	4,895	$	(5	)	$	(23	)	$	4,867

Identifiable intangible assets consisted of the following:

	March 30, 2013						December 31, 2012
In millions	Cost		Accumulated amortization		Net		Cost		Accumulated amortization		Net
Finite-life intangibles
Customer relationships	$	1,269	$	(172)	$	1,097	$	1,277	$	(153)	$	1,124
Trade names		2		(1)		1		1		—		1
Proprietary technology		262		(63)		199		264		(58)		206
Backlog		41		(31)		10		41		(18)		23
Total finite-life intangibles	$	1,574	$	(267)	$	1,307	$	1,583	$	(229)	$	1,354
Indefinite-life intangibles
Trade names		552		—		552		556		—		556
Total intangibles, net	$	2,126	$	(267)	$	1,859	$	2,139	$	(229)	$	1,910

Intangible asset amortization expense was approximately $42 million and $10 million for the three months ended March 30, 2013 and March 31, 2012, respectively.

In the fourth quarter of 2012, we recorded an impairment charge for trade name intangible assets of $49 million and $12 million in Water & Fluid Solutions and Technical Solutions, respectively.

Estimated future amortization expense for identifiable intangible assets during the remainder of 2013 and the next five years is as follows:

	Q2-Q4
In millions	2013		2014		2015		2016		2017		2018
Estimated amortization expense	$	93	$	114	$	113	$	112	$	111	$	108

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Derivatives and Financial Instruments

3 Months Ended

Mar. 30, 2013

Derivatives and Financial Instruments

9. Derivatives and Financial Instruments

Derivative financial instruments

We are exposed to market risk related to changes in foreign currency exchange rates and interest rates on our floating rate indebtedness. To manage the volatility related to these exposures, we periodically enter into a variety of derivative financial instruments. Our objective is to reduce, where it is deemed appropriate to do so, fluctuations in earnings and cash flows associated with changes in foreign currency rates and interest rates. The derivative contracts contain credit risk to the extent that our bank counterparties may be unable to meet the terms of the agreements. The amount of such credit risk is generally limited to the unrealized gains, if any, in such contracts. Such risk is minimized by limiting those counterparties to major financial institutions of high credit quality.

Interest rate swaps

During 2012, we used floating to fixed rate interest rate swaps to mitigate our exposure to future changes in interest rates related to our floating rate indebtedness. We designated these interest rate swap arrangements as cash flow hedges. As a result, changes in the fair value of the interest rate swaps were recorded in AOCI on the Condensed Consolidated Balance Sheets throughout the contractual term of each of the interest rate swap arrangements. During 2012, all of our interest rate swaps expired or were terminated and, as a result, we had no outstanding interest rate swap arrangements at December 31, 2012 or March 30, 2013.

Derivative gains and losses included in AOCI were reclassified into earnings at the time the related interest expense was recognized or the settlement of the related commitment occurred. Interest expense from swaps was $2 million for the three months ended March 31, 2012 and was recorded in Net interest expense in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss).

In April 2011, as part of our planned debt issuance to fund the Clean Process Technologies (“CPT”) acquisition, we entered into interest rate swap contracts to hedge movement in interest rates through the expected date of closing for a portion of the expected fixed rate debt offering. The swaps had a notional amount of $400 million with an average interest rate of 3.65%. In May 2011, upon the sale of the 2021 Notes, the swaps were terminated at a cost of $11 million. Because we used the contracts to hedge future interest payments, this was recorded in AOCI in the Condensed Consolidated Balance Sheets and will be amortized as interest expense over the 10 year life of the 2021 Notes. The ending unrealized net loss in AOCI was $9 million at March 30, 2013 and December 31, 2012.

Foreign currency contracts

We conduct business in various locations throughout the world and are subject to market risk due to changes in the value of foreign currencies in relation to our reporting currency, the U.S. dollar. We manage our economic and transaction exposure to certain market-based risks through the use of foreign currency derivative financial instruments. Our objective in holding these derivatives is to reduce the volatility of net earnings and cash flows associated with changes in foreign currency exchange rates. The majority of our foreign currency contracts have an original maturity date of less than one year. At March 30, 2013 and December 31, 2012, we had outstanding foreign currency derivative contracts with gross notional U.S. dollar equivalent amounts of $175 million and $164 million, respectively. The impact of these contracts on the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) is not material for any period presented.

Gains or losses on foreign currency contracts designated as hedges are reclassified out of AOCI and into Selling, general and administrative expense in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) upon settlement. Such reclassifications during the first quarter of 2013 were not material.

Fair value measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assets and liabilities measured at fair value are classified using the following hierarchy, which is based upon the transparency of inputs to the valuation as of the measurement date:

Level 1:	Valuation is based on observable inputs such as quoted market prices (unadjusted) for identical assets or liabilities in active markets.
Level 2:	Valuation is based on inputs such as quoted market prices for similar assets or liabilities in active markets or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
Level 3:	Valuation is based upon other unobservable inputs that are significant to the fair value measurement.

In making fair value measurements, observable market data must be used when available. When inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement.

Fair value of financial instruments

The recorded amounts and estimated fair values of total debt, excluding the effects of derivative financial instruments, were as follows:

	March 30, 2013				December 31, 2012
In millions	Recorded Amount		Fair Value		Recorded Amount		Fair Value
Variable rate debt	$	570	$	570	$	428	$	428
Fixed rate debt		2,028		2,067		2,029		2,081
Total debt	$	2,598	$	2,637	$	2,457	$	2,509

The following methods were used to estimate the fair values of each class of financial instrument measured on a recurring basis:

• short-term financial instruments (cash and cash equivalents, accounts and notes receivable, accounts and notes payable and variable-rate debt) — recorded amount approximates fair value because of the short maturity period;

• long-term fixed-rate debt, including current maturities — fair value is based on market quotes available for issuance of debt with similar terms, which are inputs that are classified as Level 2 in the valuation hierarchy defined by the accounting guidance; and

• interest rate swaps and foreign currency contract agreements — fair values are determined through the use of models that consider various assumptions, including time value, yield curves, as well as other relevant economic measures, which are inputs that are classified as Level 2 in the valuation hierarchy defined by the accounting guidance.

Financial assets and liabilities measured at fair value on a recurring basis were as follows:

	March 30, 2013
In millions	Level 1		Level 2			Level 3		Total
Recurring fair value measurements
Foreign currency contract assets	$	—	$	3		$	—	$	3
Foreign currency contract liabilities		—		(1	)		—		(1	)
Deferred compensation plan (1)		28		—			—		28
Total recurring fair value measurements		28		2			—		30
	December 31, 2012
In millions	Level 1		Level 2			Level 3		Total
Recurring fair value measurements
Foreign currency contract assets	$	—	$	3		$	—	$	3
Foreign currency contract liabilities		—		(1	)		—		(1	)
Deferred compensation plan (1)		23		—			—		23
Total recurring fair value measurements	$	23	$	2		$	—	$	25
Nonrecurring fair value measurements
Trade name intangibles (2)	$	—	$	—		$	64	$	64
Total nonrecurring fair value measurement	$	—	$	—		$	64	$	64

(1) Deferred compensation plan assets include mutual funds and cash equivalents for payment of certain non-qualified benefits for retired, terminated and active employees. The fair value of these assets was based on quoted market prices in active markets.

(2) In the fourth quarter of 2012, we completed our annual intangible assets impairment review. As a result, we recorded a pre-tax non-cash impairment charge of $61 million for trade names intangibles. The fair value of trade names is measured using the relief-from-royalty method. This method assumes the trade name has value to the extent that the owner is relieved of the obligation to pay royalties for the benefits received from them. This method requires us to estimate the future revenue for the related brands, the appropriate royalty rate and the weighted average cost of capital.

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Condensed Consolidating Statement of Operations and Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Net sales	$ 1,774	$ 858
Cost of goods sold	1,250	577
Gross profit	524	281
Selling, general and administrative	416	174
Research and development	34	21
Operating income (loss)	74	86
Other (income) expense:
Gain on sale of business	(17)
Net interest expense	17	15
Income before income taxes and noncontrolling interest	74	73
Provision for income taxes	21	10
Net income (loss) before noncontrolling interest	53	63
Noncontrolling interest	1	1
Net income (loss) attributable to Pentair Ltd.	52	62
Comprehensive income (loss), net of tax
Net income (loss) before noncontrolling interest	53	63
Changes in cumulative translation adjustment	(76)	40
Changes in market value of derivative financial instruments	1
Total comprehensive income (loss)	(22)	105
Less: Comprehensive income attributable to noncontrolling interest	1	2
Comprehensive income (loss) attributable to Pentair Ltd.	(23)	103
Parent Company Guarantor
Condensed Financial Statements, Captions [Line Items]
Selling, general and administrative	(1)
Operating income (loss)	1
Loss (earnings) from investment in subsidiaries	(51)
Other (income) expense:
Income before income taxes and noncontrolling interest	52
Net income (loss) before noncontrolling interest	52
Net income (loss) attributable to Pentair Ltd.	52
Comprehensive income (loss), net of tax
Net income (loss) before noncontrolling interest	52
Changes in cumulative translation adjustment	(76)
Changes in market value of derivative financial instruments	1
Total comprehensive income (loss)	(23)
Comprehensive income (loss) attributable to Pentair Ltd.	(23)
Subsidiary Issuer
Condensed Financial Statements, Captions [Line Items]
Selling, general and administrative	3
Operating income (loss)	(3)
Loss (earnings) from investment in subsidiaries	(55)
Other (income) expense:
Net interest expense	3
Income before income taxes and noncontrolling interest	49
Net income (loss) before noncontrolling interest	49
Net income (loss) attributable to Pentair Ltd.	49
Comprehensive income (loss), net of tax
Net income (loss) before noncontrolling interest	49
Changes in cumulative translation adjustment	(76)
Changes in market value of derivative financial instruments	1
Total comprehensive income (loss)	(26)
Comprehensive income (loss) attributable to Pentair Ltd.	(26)
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net sales	1,774
Cost of goods sold	1,250
Gross profit	524
Selling, general and administrative	414
Research and development	34
Operating income (loss)	76
Other (income) expense:
Gain on sale of business	(17)
Net interest expense	14
Income before income taxes and noncontrolling interest	79
Provision for income taxes	21
Net income (loss) before noncontrolling interest	58
Noncontrolling interest	1
Net income (loss) attributable to Pentair Ltd.	57
Comprehensive income (loss), net of tax
Net income (loss) before noncontrolling interest	58
Changes in cumulative translation adjustment	(76)
Changes in market value of derivative financial instruments	1
Total comprehensive income (loss)	(17)
Less: Comprehensive income attributable to noncontrolling interest	1
Comprehensive income (loss) attributable to Pentair Ltd.	(18)
Eliminations
Condensed Financial Statements, Captions [Line Items]
Loss (earnings) from investment in subsidiaries	106
Other (income) expense:
Income before income taxes and noncontrolling interest	(106)
Net income (loss) before noncontrolling interest	(106)
Net income (loss) attributable to Pentair Ltd.	(106)
Comprehensive income (loss), net of tax
Net income (loss) before noncontrolling interest	(106)
Changes in cumulative translation adjustment	152
Changes in market value of derivative financial instruments	(2)
Total comprehensive income (loss)	44
Comprehensive income (loss) attributable to Pentair Ltd.	$ 44

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Condensed Consolidating Statement of Cash Flows (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Operating activities
Net cash provided by (used for) operating activities	$ 20	$ (68)
Investing activities
Capital expenditures	(50)	(16)
Proceeds from sale of property and equipment	1	2
Proceeds from sale of business, net	30
Net cash provided by (used for) investing activities	(19)	(17)
Financing activities
Net receipts of short-term borrowings	3	15
Net receipts of commercial paper and revolving long-term debt	140	102
Repayment of long-term debt	(2)	(13)
Debt issuance costs	(1)
Shares issued to employees, net of shares withheld	11	7
Repurchases of common shares	(140)
Dividends paid	(47)	(22)
Distributions to noncontrolling interest	(2)
Net cash provided by (used for) financing activities	(38)	90
Effect of exchange rate changes on cash and cash equivalents	(9)
Change in cash and cash equivalents	(46)	5
Cash and cash equivalents, beginning of period	261	50
Cash and cash equivalents, end of period	215	55
Parent Company Guarantor
Operating activities
Net cash provided by (used for) operating activities	95
Financing activities
Net change in advances to subsidiaries	(48)
Dividends paid	(47)
Net cash provided by (used for) financing activities	(95)
Subsidiary Issuer
Operating activities
Net cash provided by (used for) operating activities	51
Financing activities
Net receipts of commercial paper and revolving long-term debt	103
Debt issuance costs	(1)
Net change in advances to subsidiaries	(153)
Net cash provided by (used for) financing activities	(51)
Non-Guarantor Subsidiaries
Operating activities
Net cash provided by (used for) operating activities	(20)
Investing activities
Capital expenditures	(50)
Proceeds from sale of property and equipment	1
Proceeds from sale of business, net	30
Net cash provided by (used for) investing activities	(19)
Financing activities
Net receipts of short-term borrowings	3
Net receipts of commercial paper and revolving long-term debt	37
Repayment of long-term debt	(2)
Net change in advances to subsidiaries	95
Shares issued to employees, net of shares withheld	11
Repurchases of common shares	(140)
Distributions to noncontrolling interest	(2)
Net cash provided by (used for) financing activities	2
Effect of exchange rate changes on cash and cash equivalents	(9)
Change in cash and cash equivalents	(46)
Cash and cash equivalents, beginning of period	261
Cash and cash equivalents, end of period	215
Eliminations
Operating activities
Net cash provided by (used for) operating activities	(106)
Financing activities
Net change in advances to subsidiaries	106
Net cash provided by (used for) financing activities	$ 106

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Financial Statements of Parent Company Guarantor - Additional Information (Detail) (Subsidiary Issuer)	3 Months Ended
	Mar. 30, 2013
Subsidiary Issuer
Condensed Financial Statements, Captions [Line Items]
Ownership percentage	100.00%

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 30, 2013

Changes in Carrying Amount of Service and Product Warranties

The changes in the carrying amount of service and product warranties for the three months ended March 30, 2013 were as follows:

In millions	March 30, 2013
Beginning balance	$	54
Service and product warranty provision		12
Payments		(13	)
Ending balance	$	53

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Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		3 Months Ended									3 Months Ended
	Mar. 30, 2013	Dec. 31, 2012	Mar. 30, 2013 Subsidiary Issuer	Mar. 30, 2013 Subsidiary Issuer Senior Notes One Point Three Five Zero Percent Due Twenty Fifteen	Mar. 30, 2013 Subsidiary Issuer Notes One Point Eight Seven Five Percent Due Twenty Seventeen	Mar. 30, 2013 Subsidiary Issuer Senior Notes Two Point Six Five Zero Percent Due Twenty Nineteen	Mar. 30, 2013 Subsidiary Issuer Senior Notes, 5.00 Percent Due 2021	Mar. 30, 2013 Subsidiary Issuer Senior Notes Three Point One Five Zero Percent Due Twenty Twenty Two	Mar. 30, 2013 Credit Facility	Sep. 29, 2012 Credit Facility	Mar. 30, 2013 Other Credit Facilities	Mar. 30, 2013 Maximum	Mar. 30, 2013 Minimum
Debt Instrument [Line Items]
Debt, interest rate				1.35%	1.875%	2.65%	5.00%	3.15%
Debt, maturity year				2015	2017	2019	2021	2022
Ownership percentage			100.00%
Credit facility maximum borrowing capacity										$ 1,450	$ 88
Commercial paper outstanding	527	425
Remaining availability under Credit Facility									886
Costs and expenses incurred in connection with acquisition excluded from computation of Net Income figure used in our debt covenant calculation												40
Debt agreement financial covenant, leverage ratio												3.00	3.50
Compliance with debt agreement financial covenants	We were in compliance with all financial covenants in our debt agreements.
Line of credit facility, amount outstanding											3
Future minimum lease payments	24
Imputed interest	2
Capital lease obligation cost	39	36
Accumulated amortization related to assets under capital lease	$ 6	$ 6

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Commitments and Contingencies

3 Months Ended

Mar. 30, 2013

Commitments and Contingencies

14. Commitments and Contingencies

Asbestos Matters

Our subsidiaries and numerous other companies are named as defendants in personal injury lawsuits based on alleged exposure to asbestos-containing materials. These cases typically involve product liability claims based primarily on allegations of manufacture, sale or distribution of industrial products that either contained asbestos or were attached to or used with asbestos-containing components manufactured by third-parties. Each case typically names between dozens to hundreds of corporate defendants. While we have observed an increase in the number of these lawsuits over the past several years, including lawsuits by plaintiffs with mesothelioma-related claims, a large percentage of these suits have not presented viable legal claims and, as a result, have been dismissed by the courts. Our historical strategy has been to mount a vigorous defense aimed at having unsubstantiated suits dismissed, and, where appropriate, settling suits before trial. Although a large percentage of litigated suits have been dismissed, we cannot predict the extent to which we will be successful in resolving lawsuits in the future.

As of March 30, 2013, there were approximately 1,900 lawsuits pending against our subsidiaries. A lawsuit might include several claims, and we have approximately 2,300 claims outstanding as of March 30, 2013. This amount is not adjusted for claims that are not actively being prosecuted, identified incorrect defendants, or duplicated other actions, which would ultimately reflect our current estimate of the number of viable claims made against us, our affiliates, or entities for which we assumed responsibility in connection with acquisitions or divestitures. In addition, the amount does not include certain claims pending against third parties for which we have provided an indemnification.

Periodically, we perform an analysis with the assistance of outside counsel and other experts to update our estimated asbestos-related assets and liabilities. Our estimate of the liability and corresponding insurance recovery for pending and future claims and defense costs is based on our historical claim experience and estimates of the number and resolution cost of potential future claims that may be filed. Our legal strategy for resolving claims also impacts these estimates.

Our estimate of asbestos-related insurance recoveries represents estimated amounts due to us for previously paid and settled claims and the probable reimbursements relating to our estimated liability for pending and future claims. In determining the amount of insurance recoverable, we consider a number of factors, including available insurance, allocation methodologies and the solvency and creditworthiness of insurers.

Our estimated liability for asbestos-related claims was $234 million and $235 million as of March 30, 2013 and December 31, 2012, respectively, and was recorded in Other non-current liabilities in the Condensed Consolidated Balance Sheets for pending and future claims and related defense costs. Our estimated receivable for insurance recoveries was $157 million as of March 30, 2013 and December 31, 2012 and was recorded in Other non-current assets in the Condensed Consolidated Balance Sheets.

The amounts recorded by us for asbestos-related liabilities and insurance-related assets are based on our strategies for resolving our asbestos claims and currently available information as well as estimates and assumptions. Key variables and assumptions include the number and type of new claims filed each year, the average cost of resolution of claims, the resolution of coverage issues with insurance carriers, the amounts of insurance and the related solvency risk with respect to our insurance carriers, and the indemnifications we have provided to third parties. Furthermore, predictions with respect to these variables are subject to greater uncertainty in the latter portion of the projection period. Other factors that may affect our liability and cash payments for asbestos-related matters include uncertainties surrounding the litigation process from jurisdiction to jurisdiction and from case to case, reforms of state or federal tort legislation and the applicability of insurance policies among subsidiaries. As a result, actual liabilities or insurance recoveries could be significantly higher or lower than those recorded if assumptions used in our calculations vary significantly from actual results.

Environmental Matters

We are involved in or have retained responsibility and potential liability for environmental obligations and legal proceedings related to our current business and, including pursuant to certain indemnification obligations, related to certain formerly owned businesses. Our accruals for environmental matters are recorded on a site-by-site basis when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, based on current law and existing technologies. Based upon our experience, current information regarding known contingencies and applicable laws, we have recorded reserves for these environmental matters of $36 million as of March 30, 2013 and December 31, 2012. We do not anticipate these environmental conditions will have a material adverse effect on our financial position, results of operations or cash flows.

Warranties and guarantees

In connection with the disposition of our businesses or product lines, we may agree to indemnify purchasers for various potential liabilities relating to the sold business, such as pre-closing tax, product liability, warranty, environmental, or other obligations. The subject matter, amounts and duration of any such indemnification obligations vary for each type of liability indemnified and may vary widely from transaction to transaction. Generally, the maximum obligation under such indemnifications is not explicitly stated and as a result, the overall amount of these obligations cannot be reasonably estimated. Historically, we have not made significant payments for these indemnifications. We believe that if we were to incur a loss in any of these matters, the loss would not have a material effect on our financial condition or results of operations.

We recognize, at the inception of a guarantee, a liability for the fair value of the obligation undertaken in issuing the guarantee.

We provide service and warranty policies on our products. Liability under service and warranty policies is based upon a review of historical warranty and service claim experience. Adjustments are made to accruals as claim data and historical experience warrant.

The changes in the carrying amount of service and product warranties for the three months ended March 30, 2013 were as follows:

In millions	March 30, 2013
Beginning balance	$	54
Service and product warranty provision		12
Payments		(13	)
Ending balance	$	53

Stand-by Letters of Credit, Bank Guarantees and Bonds

In certain situations, Tyco guaranteed Flow Control’s performance to third parties or provided financial guarantees for financial commitments of Flow Control. In situations where Flow Control and Tyco were unable to obtain a release from these guarantees in connection with the spin-off, we will indemnify Tyco for any losses it suffers as a result of such guarantees.

In disposing of assets or businesses, we often provide representations, warranties and indemnities to cover various risks including unknown damage to the assets, environmental risks involved in the sale of real estate, liability to investigate and remediate environmental contamination at waste disposal sites and manufacturing facilities and unidentified tax liabilities and legal fees related to periods prior to disposition. We do not have the ability to reasonably estimate the potential liability due to the inchoate and unknown nature of these potential liabilities. However, we have no reason to believe that these uncertainties would have a material adverse effect on our financial position, results of operations or cash flows.

In the ordinary course of business, we are required to commit to bonds, letters of credit and bank guarantees that require payments to our customers for any non-performance. The outstanding face value of these instruments fluctuates with the value of our projects in process and in our backlog. In addition, we issue financial stand-by letters of credit primarily to secure our performance to third parties under self-insurance programs.

As of March 30, 2013 and December 31, 2012, the outstanding value of bonds, letters of credit and bank guarantees totaled $514 million and $493 million, respectively.

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Restructuring (Tables)

3 Months Ended

Mar. 30, 2013

Restructuring Related Costs

Restructuring related costs included in Selling, general and administrative expenses in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) included costs for severance and other restructuring costs as follows:

	Three months ended
In millions	March 30,     2013		March 31,     2012
Severance and related costs	$	20	$	—
Other		2		—
Total restructuring costs	$	22	$	—

Restructuring Accrual Activity Recorded on Consolidated Balance Sheets

Activity in the restructuring accrual recorded in Other current liabilities and Employee compensation and benefits in the Condensed Consolidated Balance Sheets is summarized as follows for the three months ended March 30, 2013:

In millions	March 30,     2013
Beginning balance	$	57
Costs incurred		20
Cash payments and other		(18)
Ending balance	$	59

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Estimated Future Amortization Expense for Identifiable Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013
Finite-Lived Intangible Assets [Line Items]
Estimated amortization expense 2013	$ 93
Estimated amortization expense 2014	114
Estimated amortization expense 2015	113
Estimated amortization expense 2016	112
Estimated amortization expense 2017	111
2018	$ 108

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Restructuring - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 30, 2013 Person	Dec. 31, 2012 Person
Restructuring Cost and Reserve [Line Items]
Number of employees	400	1,000
Total restructuring costs	$ 22
Water & Fluid Solutions
Restructuring Cost and Reserve [Line Items]
Number of employees	100	500
Total restructuring costs	7
Valves & Controls
Restructuring Cost and Reserve [Line Items]
Number of employees	100	300
Total restructuring costs	5
Technical Solutions
Restructuring Cost and Reserve [Line Items]
Number of employees	200	200
Total restructuring costs	$ 10

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Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Operating activities
Net income before noncontrolling interest	$ 53	$ 63
Adjustments to reconcile net income before noncontrolling interest to net cash provided by (used for) operating activities
Equity income of unconsolidated subsidiaries		(2)
Depreciation	38	16
Amortization	42	10
Deferred income taxes	2
Gain on sale of business	(17)
Share-based compensation	10	5
Excess tax benefits from share-based compensation		(1)
Gain on sale of assets		(1)
Changes in assets and liabilities, net of effects of business acquisitions
Accounts and notes receivable	(129)	(100)
Inventories	29	(20)
Other current assets	(22)	3
Accounts payable	21	(4)
Employee compensation and benefits	(24)	(24)
Other current liabilities	9	15
Other non-current assets and liabilities	8	(28)
Net cash provided by (used for) operating activities	20	(68)
Investing activities
Capital expenditures	(50)	(16)
Proceeds from sale of property and equipment	1	2
Proceeds from sale of business, net	30
Other		(3)
Net cash provided by (used for) investing activities	(19)	(17)
Financing activities
Net receipts of short-term borrowings	3	15
Net receipts of commercial paper and revolving long-term debt	140	102
Repayments of long-term debt	(2)	(13)
Debt issuance costs	(1)
Excess tax benefits from share-based compensation		1
Shares issued to employees, net of shares withheld	11	7
Repurchases of common shares	(140)
Dividends paid	(47)	(22)
Distribution to noncontrolling interest	(2)
Net cash provided by (used for) financing activities	(38)	90
Effect of exchange rate changes on cash and cash equivalents	(9)
Change in cash and cash equivalents	(46)	5
Cash and cash equivalents, beginning of period	261	50
Cash and cash equivalents, end of period	$ 215	$ 55

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Share Plans

3 Months Ended

Mar. 30, 2013

Share Plans

3. Share Plans

Total share-based compensation expense was $10 million and $5 million for the first quarter of 2013 and 2012, respectively. Total compensation expense for restricted stock units during the first quarter of 2013 and 2012 was $7 million and $3 million, respectively. Restricted stock units are valued at market value on the date of grant and are typically expensed over a three to four year vesting period. Total compensation expense for stock option awards was $3 million and $2 million for the first quarter of 2013 and 2012, respectively. Option awards are granted with an exercise price equal to the market price of our common shares on the date of grant. Option awards generally vest over a three-year period and are expensed over the vesting period.

During the first quarter of 2013, we issued our annual share-based compensation grants under the Pentair Ltd. 2012 Stock and Incentive Plan to eligible employees. The total number of awards issued was approximately 1.2 million, of which 0.9 million were stock options and 0.3 million were restricted stock units. The weighted-average grant date fair value of the stock options and restricted stock units issued was $13.89 and $50.60, respectively.

We estimated the fair value of each stock option award on the date of grant using a Black-Scholes option pricing model, modified for dividends and using the following assumptions:

	March 30,     2013		March 31,       2012
Risk-free interest rate		0.69%		0.96%
Expected dividend yield		2.01%		2.48%
Expected share price volatility		36.0%		36.5%
Expected term (years)		5.7		5.7

These estimates require us to make assumptions based on historical results, observance of trends in our share price, changes in option exercise behavior, future expectations and other relevant factors. If other assumptions had been used, share-based compensation expense, as calculated and recorded under the accounting guidance, could have been affected.

We based the expected life assumption on historical experience as well as the terms and vesting periods of the options granted. For purposes of determining expected share price volatility, we considered a rolling average of historical volatility measured over a period approximately equal to the expected option term. The risk-free interest rate for periods that coincide with the expected life of the options is based on the U.S. Treasury Department yield curve in effect at the time of grant.

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Components of Net Periodic Benefit Cost (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4	$ 3
Interest cost	3	7
Expected return on plan assets	(2)	(7)
Net periodic benefit cost	5	3
Non-US Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	1
Interest cost	5	1
Expected return on plan assets	(4)
Net periodic benefit cost	$ 3	$ 2

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Earnings Per Share (Tables)

3 Months Ended

Mar. 30, 2013

Basic and Diluted Earnings Per Share

Basic and diluted earnings per share were calculated as follows:

	Three months ended
In millions, except per-share data	March 30,     2013		March 31,     2012
Net income attributable to Pentair Ltd.	$	52	$	62
Weighted average common shares outstanding
Basic		204.8		98.6
Dilutive impact of stock options and restricted stock units (1)		3.4		1.8
Diluted		208.2		100.4
Earnings per common share attributable to Pentair Ltd.
Basic earnings per common share	$	0.25	$	0.63
Diluted earnings per common share	$	0.25	$	0.62
Anti-dilutive stock options and restricted stock units (2)		1.0		2.5

(1) The incremental share impact from stock options and restricted stock units was computed using the treasury stock method.

(2) Stock options and restricted stock units that were not dilutive were excluded from our calculation of diluted weighted average shares.

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Pro Forma Consolidated FInancial Results of Operations (Detail) (Business Acquisition Pro Forma Information, USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Business Acquisition Pro Forma Information
Business Acquisition [Line Items]
Pro forma net sales	$ 1,857
Pro forma net income attributable to Pentair Ltd.	$ 107
Diluted earnings per common share attributable to Pentair Ltd.	$ 0.51

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Segment information

3 Months Ended

Mar. 30, 2013

Segment information

13. Segment information

Financial information by reportable segment is shown below:

	Three months ended
In millions	March 30, 2013			March 31, 2012
Net sales
Water & Fluid Solutions	$	782		$	587
Valves & Controls		586			—
Technical Solutions		410			273
Other		(4	)		(2)
Consolidated	$	1,774		$	858
Operating income (loss)
Water & Fluid Solutions	$	75		$	64
Valves & Controls		(19	)		—
Technical Solutions		53			50
Other		(35	)		(28)
Consolidated	$	74		$	86