- Statement of Changes in Beneficial Ownership (4)

FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^* DEHONT RAYMOND J	2. Issuer Name and Ticker or Trading Symbol MET PRO CORP [ MPR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __ X __ Director _____ 10% Owner __ X __ Officer (give title below) _____ Other (specify below) President & CEO
(Last) (First) (Middle) C/O MET-PRO CORPORATION, PO BOX 144	3. Date of Earliest Transaction (MM/DD/YYYY) 2/27/2012
(Street) HARLEYSVILLE, PA 19438 (City) (State) (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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)
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock, Par Value $ .10								32086	D
Common Stock, Par Value $ .10								10571	I	Held in ESOT/401K

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)			11. Nature of Indirect Beneficial Ownership (Instr. 4)
Non-Statutory Stock Purchase Option	$9.644							⁽¹⁾	2/23/2014	Common Stock	30314		30314	D
Statutory Stock Purchase Option	$9.644							⁽²⁾	2/23/2014	Common Stock	14132		44446	D
Statutory Stock Purchase Option	$7.411							⁽³⁾	2/22/2015	Common Stock	40480		84926	D
Non-Statutory Stock Purchase Option	$7.411							⁽⁴⁾	2/22/2015	Common Stock	3966		88892	D
Non-Statutory Stock Purchase Option	$9.0375							⁽⁵⁾	12/15/2015	Common Stock	45334		134226	D
Statutory Stock Purchase Option	$10.8975							⁽⁶⁾	12/15/2016	Common Stock	18347		152573	D
Non-Statutory Stock Purchase Option	$10.8975							⁽⁷⁾	12/15/2016	Common Stock	28320		180893	D
Statutory Stock Purchase Option	$11.75							⁽⁸⁾	12/10/2017	Common Stock	8510		189403	D
Non-Statutory Stock Purchase Option	$11.75							⁽⁹⁾	12/10/2017	Common Shares	36990		226393	D
Statutory Stock Purchase Option	$11.345							⁽¹⁰⁾	12/3/2018	Common Stock	8800		235193	D
Non-Statutory Stock Purchase Option	$11.345							⁽¹¹⁾	12/3/2018	Common Shares	36700		271893	D
Statutory Stock Purchase Option	$9.69							12/11/2012	12/11/2019	Common Stock	10300		282193	D
Non-Statutory Stock Purchase Option	$9.69							⁽¹²⁾	12/11/2019	Common Shares	35200		317393	D
Statutory Stock Purchase Option	$12.18							12/17/2013	12/17/2020	Common Stock	8210		325603	D
Non-Statutory Stock Purchase Option	$12.18							⁽¹³⁾	12/17/2020	Common Stock	29342		354945	D
Statutory Stock Purchase Option	$9.85	2/27/2012		A		14755		⁽¹⁴⁾	2/27/2022	Common Stock	14755	$ 0	369200	D
Non-Statutory Stock Purchase Option	$9.85	2/27/2012		A		15110		⁽¹⁵⁾	2/27/2022	Common Stock	15110	$ 0	384310	D

Explanation of Responses:
( 1)	Exercisable 02/23/2004 as to 14,636 shares and 01/28/2005 as to 15,678 shares.
( 2)	Exercisable 02/23/2004 as to 177 shares and 01/28/2005 as to 13,955 shares.
( 3)	Exercisable 02/22/2005 as to 13,493 shares, 02/22/2006 as to 13,493 shares and 02/22/2007 as to 13,494 shares.
( 4)	Exercisable 02/22/2005 as to 1,322 shares, 02/22/2006 as to 1,322 shares and 02/22/2007 as to 1,322 shares.
( 5)	Exercisable 12/15/2005 as to 15,111 shares, 12/15/2006 as to 15,111 shares and 12/15/2007 as to 15,112 shares
( 6)	Exercisable 12/15/2007 as to 0 shares, 12/15/2008 as to 9,173 shares and 12/15/2009 as to 9,174 shares.
( 7)	Exercisable 12/15/2007 as to 15,555 shares, 12/15/2008 as to 6,383 shares and 12/15/2009 as to 6,382 shares.
( 8)	Exercisable 12/10/2008 as to 0 shares, 12/10/2009 as to 0 shares and 12/10/2010 as to 8,510.
( 9)	Exercisable 12/10/2008 as to 15,166 shares, 12/10/2009 as to 15,167 shares and 12/10/2010 as to 6,657 shares.
( 10)	Exercisable 12/03/2009 as to 0 shares, 12/03/2010 as to 0 shares and 12/03/2011 as to 8,800 shares.
( 11)	Exercisable 12/03/2009 as to 15,166 shares, 12/03/2010 as to 15,167 shares and 12/03/2011 as to 6,367 shares.
( 12)	Exercisable 12/11/2010 as to 15,166 shares, 12/11/2011 as to 15,166 shares and 12/11/2012 as to 4,868 shares.
( 13)	Exercisable 12/17/2011 as to 12,517 shares, 12/17/2012 as to 12,517 shares and 12/17/2013 as to 4,308 shares.
( 14)	Exercisable 02/27/2013 as to 0 shares, 02/27/2014 as to 4,800 shares and 02/27/2015 as to 9,955 shares.
( 15)	Exercisable 02/27/2013 as to 9,955 shares, 02/27/2014 as to 5,155 shares and 02/27/2015 as to 0 shares.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
DEHONT RAYMOND J C/O MET-PRO CORPORATION PO BOX 144 HARLEYSVILLE, PA 19438	X		President & CEO

Signatures
Gary J. Morgan Attorney-in-fact of Raymond J. De Hont		2/29/2012
^** 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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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