Exhibit 32.1

Certification of Principal Executive Officer 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 plc (the “Company”) on Form 10-Q for the period ended March 29, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Angela D. Lageson, Principal 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:	May 13, 2014	/s/ Angela D. Lageson
		Angela D. Lageson
		Principal Executive Officer