SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Osterhoudt Lewis E
(Last) (First) (Middle)
C/O MET-PRO CORPORATION
PO BOX 144
(Street)
HARLEYSVILLE PA 19438
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
MET PRO CORP [ MPR ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
VP & General Manager / Retired
3. Date of Earliest Transaction (Month/Day/Year)
01/08/2013
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock, Par Value $.10 3,082 I Held in ESOT/401K/IRA
Common Stock, Par Value $.10 01/08/2013 M 8,000 A $7.411 8,405 D
Common Stock, Par Value $.10 01/08/2013 F 6,489 D $10.195 1,916 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Statutory Stock Purchase Option $9.644 (2) 02/23/2014 Common Stock 5,334 5,334 D
Statutory Stock Purchase Option $7.411 01/08/2013 M 8,000 (1) 02/22/2015 Common Stock 8,000 $7.411 0 D
Statutory Stock Purchase Option $9.0375 (3) 12/15/2015 Common Stock 8,000 13,334 D
Statutory Stock Purchase Option $10.8975 (4) 12/15/2016 Common Stock 8,000 21,334 D
Statutory Stock Purchase Option $11.75 (5) 12/10/2017 Common Stock 7,800 29,134 D
Statutory Stock Purchase Option $11.345 (6) 12/03/2018 Common Stock 6,000 35,134 D
Statutory Stock Purchase Option $9.69 (7) 12/11/2019 Common Stock 6,000 41,134 D
Statutory Stock Purchase Option $12.18 (8) 12/17/2020 Common Stock 4,952 46,086 D
Statutory Stock Purchase Option $9.85 (9) 02/07/2022 Common Stock 3,938 50,024 D
Statutory Stock Purchase Option $10.41 (10) 04/02/2022 Common Stock 2,464 52,488 D
Explanation of Responses:
1. Exercisable 02/22/2005 as to 2,666 shares, 02/22/2006 as to 2,667 shares and 02/22/2007 as to 2,667 shares.
2. Exercisable 02/23/2004 as to 1,777 shares and 01/28/2005 as to 3,557 shares.
3. Exercisable 12/15/2005 as to 2,666 shares, 12/15/2006 as to 2,667 shares and 12/15/2007 as to 2,667 shares.
4. Exercisable 12/15/2007 as to 2,666 shares, 12/15/2008 as to 2,667 shares and 12/15/2009 as to 2,667 shares.
5. Exercisable 12/10/2008 as to 2,600 shares, 12/10/2009 as to 2,600 shares and 12/10/2010 as to 2,600 shares.
6. Exercisable 12/03/2009 as to 2,000 shares, 12/03/2010 as to 2,000 shares and 12/03/2011 as to 2,000 shares.
7. Exercisable 12/11/2010 as to 2,000 shares, 12/11/2011 as to 2,000 shares and 12/11/2012 as to 2,000 shares.
8. Exercisable 12/17/2011 as to 1,650 shares, 12/17/2012 as to 1,651 shares and 12/17/2013 as to 1,651 shares.
9. Exercisable 02/27/2013 as to 1,312 shares, 02/27/2014 as to 1,313 shares and 02/27/2015 as to 1,313 shares.
10. Exercisable 04/02/2013 as to 821 shares, 04/02/2014 as to 821 shares and 04/02/2015 as to 822 shares.
Remarks:
/s/ Neal E. Murphy Attorney-in-fact of Lewis E. Osterhoudt 01/10/2013
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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