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
                                                                                  
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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)

9/22/2008
(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)
Code V Amount (A) or (D) Price
Common Stock, Par Value $ .10                  10785   D    
Common Stock, Par Value $ .10   9/22/2008     M    17779   A $5.1047   28564   D    
Common Stock, Par Value $ .10   9/22/2008     F    9752   D $15.65   18812   D    
Common Stock, Par Value $.10                  8514   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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Statutory Stock Purchase Option   $5.1047   9/22/2008     M     17779       2/26/2003   2/26/2011   Common Stock   17779   $5.1047   0   D    
Statutory Stock Purchase Option   $5.5476                   2/25/2004   2/25/2012   Common Stock   17779     17779   D    
Statutory Stock Purchase Option   $5.5181                     (1) 2/24/2013   Common Stock   35556     53335   D    
Non-Statutory Stock Purchase Option   $9.644                     (2) 2/23/2014   Common Stock   30314     83649   D    
Statutory Stock Purchase Option   $9.644                     (3) 2/23/2014   Common Stock   14132     97781   D    
Statutory Stock Purchase Option   $7.411                     (4) 2/22/2015   Common Stock   40480     138261   D    
Non-Statutory Stock Purchase Option   $7.411                     (5) 2/22/2015   Common Stock   3966     142227   D    
Non-Statutory Stock Purchase Option   $9.0375                     (6) 12/15/2015   Common Stock   45334     187561   D    
Statutory Stock Purchase Option   $10.8975                     (7) 12/15/2016   Common Stock   18347     205908   D    
Non-Statutory Stock Purchase Option   $10.8975                     (8) 12/15/2016   Common Stock   28320     234228   D    
Statutory Stock Purchase Option   $11.75                     (9) 12/10/2017   Common Stock   8510     242738   D    
Non-Statutory Stock Purchase Option   $11.75                     (10) 12/10/2017   Common Shares   36990     279728   D    

Explanation of Responses:
( 1)  Exercisable 02/24/2003 as to 11,852 shares, 02/24/2004 as to 11,852 and 02/24/2005 as to 11,852 shares.
( 2)  Exercisable 02/23/2004 as to 14,636 shares and 01/28/2005 as to 15,678 shares.
( 3)  Exercisable 02/23/2004 as to 177 shares and 01/28/2005 as to 13,955 shares.
( 4)  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.
( 5)  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.
( 6)  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
( 7)  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.
( 8)  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.
( 9)  Exercisable 12/10/2008 as to 0 shares, 12/10/2009 as to 0 shares and 12/10/2010 as to 8,510.
( 10)  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.

Reporting Owners
Reporting Owner Name / Address
Relationships
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 9/23/2008
** 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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