POWER OF ATTORNEY

The undersigned hereby constitutes and appoints Neal E. Murphy, the undersigned’s true and lawful attorney-in-fact to:

(1)	execute for an on behalf of the undersigned, in the undersigned’s capacity as a beneficial owner of shares of common stock of Met-Pro Corporation (the “Company”), Forms 3, 4 and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 (the “Exchange Act”) and the rules thereunder;

(2)	do and perform and any all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4 or 5 and timely file such Form with the United States Securities and Exchange Commission (the “SEC”) and any stock exchange or similar authority;

(3)	execute for and on behalf of the undersigned, in the undersigned’s capacity as beneficial owner of shares of common stock of the Company Schedules 13D and 13G, or any amendments thereto, in accordance with the Exchange Act and the rules thereunder;

(4)	do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Schedule 13D and 13G or amendments thereto and timely file such form or amendment with the SEC and any stock exchange or similar authority, and

(5)

take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact’s discretion.

The undersigned hereby grants to each such attorney-in-fact power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact’s substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorney-in-fact, in serving in such capacity at the request of the undersigned, is not assuming, nor is the Company assuming, any of the undersigned’s responsibilities to comply with Sections 13 and 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Schedules 13D or 13G or Forms 3, 4 or 5 with respect to the undersigned’s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 2nd day of April, 2012.

	Signature	/s/ Robin L. Wiessmann
		Robin L. Wiessmann

	Note - Sign on line above and print your name on line below.

	Printed Name:	Robin L. Wiessmann
		Robin L. Wiessmann

Wiessmann Robin L 4