----

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

| Pennsylvania                                  |   | 23-1683282               |
|-----------------------------------------------|--------|--------------------------|
| (State      or other jurisdiction of          |   | (I.R.S.      Employer    |
| incorporation      or organization)           |   | Identification      No.) |
|                                          |   |                     |
| 160      Cassell Road, P. O. Box 144          |   |                     |
| Harleysville,      Pennsylvania               |   | 19438                    |
| (Address      of principal executive offices) |   | (Zip      Code)          |

|                                          |   | Name      of each exchange on |
|-----------------------------------------------|--------|-------------------------------|
| Title of each class                           |   | which registered              |
| Common      Shares, par value $0.10 per share |   | New      York Stock Exchange  |

|                                                                                                           | Form      10-K |
|----------------------------------------------------------------------------------------------------------------|----------------|
|                                                                                                           | Part Number    |
| Portions      of Registrant’s Definitive Proxy Statement filed pursuant to Regulation      14A           |           |
| in      connection with Registrant’s Annual Meeting of Shareholders to be held on      June 2, 2010 | III            |

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Index

|        |          |                                                     | Page   |
|-------------|---------------|----------------------------------------------------------|--------|
|        |          |                                                     |   |
| PART      I |          |                                                     |
|        | Item      1.  | Business                                                 | 1      |
|        |          | Executive Officers of the    Registrant                  | 7      |
|        | Item      1A. | Risk Factors                                             | 8      |
|        | Item      1B. | Unresolved Staff Comments                                | 11     |
|        | Item      2.  | Properties                                               | 12     |
|        | Item      3.  | Legal Proceedings                                        | 13     |
|        | Item      4.  | Submission of Matters to a Vote of Security      Holders | 13     |

| PART      II |          |                                                                                             |
|--------------|---------------|--------------------------------------------------------------------------------------------------|
|         | Item      5.  | Market for the Registrant’s Common Equity, Related Shareholder      Matters and            |   |
|         |          | Issuer Purchases of Equity Securities                                                            | 14 |
|         | Item      6.  | Selected Financial Data                                                                          | 17 |
|         | Item      7.  | Management’s Discussion and Analysis of Financial Condition      and Results of Operations | 18 |
|         |          | Forward-Looking Statements; Factors That May Affect      Future Results                          | 27 |
|         | Item      7A. | Quantitative and Qualitative Disclosure About Market      Risks                                  | 28 |
|         | Item      8.  | Financial Statements and Supplementary    Data                                                   | 29 |
|         | Item      9.  | Changes in and Disagreements with Accountants on Accounting and      Financial Disclosure        | 61 |
|         | Item      9A. | Controls and Procedures                                                                          | 61 |
|         | Item      9B. | Other Information                                                                                | 61 |

| PART      III |          |                                                                                                |
|---------------|---------------|-----------------------------------------------------------------------------------------------------|
|          | Item      10. | Directors, Executive Officers and Corporate      Governance                                         | 62 |
|          | Item      11. | Executive Compensation                                                                              | 62 |
|          | Item      12. | Security Ownership of Certain Beneficial Owners and Management      and Related Shareholder Matters | 62 |
|          | Item      13. | Certain Relationships and Related Transactions, and Director      Independence                      | 62 |
|          | Item      14. | Principal Accountant Fees and Services                                                              | 62 |

| PART      IV |          |                                       |
|--------------|---------------|--------------------------------------------|
|         | Item      15. | Exhibits and Financial Statement Schedules | 63 |
|         |          |                                       |   |
| SIGNATURES   | 69            |

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Index

|   FACTORS THAT MAY AFFECT FUTURE RESULTSMet-Pro’s      prospects are subject to certain uncertainties and risks.  This      Annual Report on Form 10-K also contains certain forward-looking      statements within the meaning of the Federal securities      laws.  Met-Pro’s future results may differ materially from its      current results and actual results could differ materially from those      projected in the forward-looking statements, perhaps for reasons described      in “Risk Factors”, and perhaps for other unanticipated reasons. Readers      should pay particular attention to the considerations described in the      section of this report entitled “Management’s Discussion and Analysis of      Financial Condition and Results of Operations – Forward-Looking      Statements; Factors That May Affect Future Results.” Readers should      also carefully review the risk factors identified in this Annual Report      and in other documents Met-Pro files from time to time with the Securities      and Exchange Commission.  |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

Item1.    Business:

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Index

|               | Percentage      of Net Sales       |
|--------------------|------------------------------------|
|               | Fiscal      Year Ended January 31, |
|               | 2010                               |   | 2009 |   | 2008 |   |   |
| United      States | 75.5                               | % | 74.3 | % | 71.7 | % |   |
| Foreign            | 24.5                               | % | 25.7 | % | 28.3 | % |   |
| Net      Sales     | 100.0                              | % | 100.0 | % | 100.0 | % |   |

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Index

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Executive Officers of the Registrant:

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Index

Item 1A. RiskFactors:

| Our      operating results may be adversely affected by unfavorable economic and      market conditions and the uncertain geopolitical    environment. |
|--------------------------------------------------------------------------------------------------------------------------------------------------------|

| · | reduced      demand for our products, especially for those offered by our Product      Recovery/Pollution Control Technologies reporting segment, which include      large dollar projects more likely to be affected by economic      conditions; |
|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| · | increased      price competition for our products;                                                                                                                                                                                                 |
| · | increased      risk of excess and obsolete inventories;                                                                                                                                                                                            |
| · | increased      risk in the collectability of cash from our customers;                                                                                                                                                                              |
| · | increased      risk of the impairment of goodwill of our Flex-Kleen    business;                                                                                                                                                                   |
| · | increased      risk in potential reserves for doubtful accounts and write-offs of      accounts receivable; and                                                                                                                                    |
| · | higher      operating costs as a percentage ofrevenues.                                                                                                                                                                                            |

| We      sell our products in highly competitive markets, which puts pressure on      our profit margins and limits our ability to maintain or increase the      market share of our products. |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| We      are party to asbestos-containing product litigation that could adversely      affect our financial condition, results of operations and cash      flows. |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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Index

| Significant      changes in pension fund investment performance or assumptions relating to      pension costs may have a material effect on the valuation of our      obligations under our defined benefit pension plans, the funded status of      these plans and our pension expense, which can affect our earnings results      as well as our cash flows. |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| If      our goodwill or indefinite-lived intangible assets become impaired, we may      be required to record a significant charge to  earnings. |
|--------------------------------------------------------------------------------------------------------------------------------------------------|

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| If      we are unable to obtain raw materials at favorable prices, our operating      margins and results of operations will be adversely    affected. |
|--------------------------------------------------------------------------------------------------------------------------------------------------------|

| We      may incur significant expense as a result of negligence, product liability      and warranty claims, which could adversely affect our financial condition,      results of operations and cashflows. |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Natural      or man-made disasters could negatively affect our  business. |
|---------------------------------------------------------------------------|

| A substantial portion of our business is sold      internationally, we also manufacture outside the United States, and we      plan to increase our international distribution and      manufacturing of our products.  These international activities      subject us to additional businessrisks. |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| · | export      and import restrictions, tax consequences and other trade      barriers,        |
|--------|---------------------------------------------------------------------------------------------|
| · | currency      fluctuations,                                                                 |
| · | greater      difficulty in accounts receivable collections,                                 |
| · | economic      and political instability,                                                    |
| · | foreign      exchange controls that prohibit payment in U.S. dollars,    and                |
| · | increased      complexity and costs of managing and staffing international      operations. |

| Our      products could infringe the intellectual property rights of others and we      may be exposed to costlylitigation. |
|-----------------------------------------------------------------------------------------------------------------------------|

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Index

| Our      ability to operate our Company effectively could be impaired if we fail to      attract and retain key personnel. |
|----------------------------------------------------------------------------------------------------------------------------|

| Changes      in accounting may affect our reportedearnings. |
|-------------------------------------------------------------|

| Additional      risks to the Company. |
|---------------------------------------|

Item1B. UnresolvedStaff Comments:

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Index

Item 2.    Properties:

|                             | User                                 |   |                                    | Structure |   |   |   | Property/Location |   | Status |   |
|----------------------------------|--------------------------------------|--------|-----------------------------------------|-----------|--------|--------|--------|-------------------|--------|--------|--------|
|                             |                                 |   |                                    |      |
| Product      Recovery/Pollution  | 73,000      square foot, cement      |   | 17      acres in Harleysville,          | Owned     |
| Control      Technologies        | building,      with finestone facing |   | Pennsylvania(1)                         |      |
|                             |                                 |   |                                    |      |
|                             | 45,500      square foot, brick       |   | 2.3      acres in Glendale Heights,     | Owned     |
|                             | building                             |   | Illinois                                |      |
|                             |                                 |   |                                    |      |
|                             | 3,239      square foot, masonry      |   | Vaughan,      Ontario,                  | Leased(2) |
|                             | building                             |   | Canada                                  |      |
|                             |                                 |   |                                    |      |
|                             | 63,000      square foot, metal       |   | 7      acres in Owosso,                 | Owned     |
|                             | and      masonry building            |   | Michigan(3)                             |      |
|                             |                                 |   |                                    |      |
| Fluid      Handling Technologies | 93,500      square foot, cement      |   | 8      acres in Telford,                | Owned     |
|                             | building      with brick facing      |   | Pennsylvania                            |      |
|                             |                                 |   |                                    |      |
|                             | 66,000      square foot, metal       |   | 17.1      acres in Indianapolis,        | Owned     |
|                             | building                             |   | Indiana                                 |      |
|                             |                                 |   |                                    |      |
| Mefiag      Filtration           | 34,000      square foot, metal       |   | 1.7 acres      in Heerenveen,      | Owned     |
| Technologies                     | and      masonry building            |   | The      Netherlands                    |      |
|                             |                                 |   |                                    |      |
|                             | Vacant      land                     |   | 3      acres in Heerenveen,             | Owned     |
|                             |                                 |   | The      Netherlands                    |      |
|                             |                                 |   |                                    |      |
|                             | 11,000      square foot cement       |   | Guangzhou,      People’s Republic | Leased(4) |
|                             | building                             |   | of      China                           |      |
|                             |                                 |   |                                    |      |
| Filtration/Purification          | 31,000      square foot, cement      |   | 2.3      acres in Hatfield,             | Owned     |
| Technologies                     | block      building                  |   | Pennsylvania                            |      |
|                             |                                 |   |                                    |      |
|                             | 22,000      square foot, cement      |   | 2.55      acres in Waukegan,            | Owned     |
|                             | block      building                  |   | Illinois                                |      |

| (1) | Executive      offices are housed in the building located in Harleysville,      Pennsylvania.                                                                                                                       |
|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | On      April 1, 2008, Met-Pro Product Recovery/Pollution Control Technologies,      Inc. entered into a lease for a sales and warehouse facility in Vaughan,      Ontario, Canada which expires on March 31, 2011. |
| (3) | Mefiag      Filtration Technologies leases space in the Product Recovery/Pollution      Control Technologies facility located in Owosso,  Michigan.                                                                 |
| (4) | Mefiag      Filtration Technologies lease for the operation in Guangzhou, People’s      Republic of China expires on July 31, 2010. We anticipate renewing the      lease.                                    |

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Index

Item 3.    LegalProceedings:

Item 4.    Submission of Matters to a Vote ofSecurity Holders:

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Index

PART II

Item 5.    Market for the Registrant’s CommonEquity, Related Shareholder Matters and Issuer Purchases of EquitySecurities:

|                               |   | Quarter      ended |   |
|------------------------------------|--------|--------------------|--------|
| Year      ended January 31, 2010   | April  |               | July   |   | October |   | January |
|                               |   |               |   |   |   |   |   |
| Price      range of common shares: |   |               |   |   |   |   |   |
| High                               | $12.76 |               | $11.25 |   | $10.94 |   | $10.84 |
| Low                                | 6.05   |               | 8.50   |   | 9.15 |   | 9.03 |
| Cash      dividend paid            | .0600  |               | .0600  |   | .0600 |   | .0600 |
|                               |   |               |   |   |   |   |   |
| Year      ended January 31, 2009   | April  |               | July   |   | October |   | January |
|                               |   |               |   |   |   |   |   |
| Price      range of common shares: |   |               |   |   |   |   |   |
| High                               | $11.76 |               | $15.38 |   | $16.65 |   | $13.50 |
| Low                                | 9.83   |               | 11.67  |   | 9.10 |   | 8.93 |
| Cash      dividend paid            | .0550  |               | .0550  |   | .0550 |   | .0600 |

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|     |
|--------------------|

|   |   |   |   |   |   | January      31, |   |   |   |   |
|--------|--------|--------|--------|--------|--------|------------------|--------|--------|--------|--------|
|   |   | 2005   |   | 2006   |   | 2007             |   | 2008   |   | 2009   |   | 2010 |

| Met-Pro      Corporation                   |   | $100.00      |   | $137.98            |   |  $165.85 |   | $151.30 |   | $163.55 |   | $143.49 |
|--------------------------------------------|--------|--------------|--------|--------------------|--------|---------------|--------|---------|--------|---------|--------|---------|
| S&P      SC Industrial Machinery Index |   |  100.00 |   |   121.50 |   |  142.44  |   | 140.71  |   | 87.35   |   | 114.92  |
| S&P      500 Index                     |   | 100.00       |   | 110.37             |   | 126.38        |   | 123.45  |   | 75.78   |   | 100.09  |
| Russell      2000 Index                    |   |  100.00 |   |   118.97 |   |  131.45  |   | 118.60  |   | 74.89   |   | 103.20  |

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Index

|                                             |                      |                              |                          |   |                     |   | Number      of Securities |
|--------------------------------------------------|---------------------------|-----------------------------------|-------------------------------|--------|--------------------------|--------|---------------------------|
|                                             |                      |                              |                          |   |                     |   | Remaining      Available  |
|                                             | Number      of Securities |                              |                          |   | For      Future Issuance |
|                                             | to      be Issued Upon    | Weighted-Average                  | Under      Equity             |
|                                             | Exercise      of          | Exercise      Price of            | Compensation      Plans       |
|                                             | Outstanding      Options, | Outstanding      Options,         | (Excluding      Securities    |
| Plan      Category                               | Warrants      and Rights  | Warrants      and Rights          | Reflected      in Column (A)) |
|                                             |                      | (A)                               |                          |   | (B)                      |   |                      | (C) |   |
| Equity      compensation plans approved by       |                      |                              |                          |   |                     |   |                      |   |   |
|     security      holders    |                      |     1,373,027 |  (1)                     |   | $9.69                    |   |                      |  855,605 |  (2) |
| Equity      compensation plans not approved      |                      |                              |                          |   |                     |   |                      |   |   |
|     by      security holders |                      | -                                 |                          |   | -                        |   |                      | - |   |

| (1)   | The      number of securities to be issued upon exercise of outstanding options for      the 1997 Stock Option Plan, the 2001 Equity Incentive Plan, the 2005      Equity Incentive Plan and the 2008 Equity Incentive Plan amounted to      69,924; 488,037; 815,066 and zero (0) shares,  respectively. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (2)   | The      number of securities remaining available for future issuance under equity      compensation plans for the 1997 Stock Option Plan, the 2001 Equity      Incentive Plan, the 2005 Equity Incentive Plan and the 2008 Equity      Incentive Plan amounted to zero (0); 51,116; 54,489 and 750,000 shares,      respectively. |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                      |   |           |   |                                         |   | Total           |   | Maximum        |   |
|---------------------------|--------|----------------|--------|----------------------------------------------|--------|-----------------|--------|----------------|--------|
|                      |   |           |   |                                         |   | Number      of  |   | Number      of |   |
|                      |   |           |   |                                         |   | Shares          |   | Shares         |   |
|                      |   |           |   |                                         |   | Purchased       |   | That      May  |   |
|                      |   |           |   |                                         |   | As      Part of |   | Yet      Be    |   |
|                      |   | Total          |   |                                         |   | Publicly        |   | Purchased      |   |
|                      |   | Number      of |   | Average                                      |   | Announced       |   | Under      the |   |
|                      |   | Shares         |   | Price      Paid                              |   | Plans      or   |   | Plan      or   |   |
| Period                    |   | Purchased      |   | Per      Share                               |   | Programs        |   | Programs       |   |
| February      1-28, 2009  |   | 0              |   | $       - |   | 0               |   | 300,000        |   |
| March      1-31, 2009     |   | 0              |   | -                                            |   | 0               |   | 300,000        |   |
| April      1-30, 2009     |   | 0              |   | -                                            |   | 0               |   | 300,000        |   |
| May      1-31, 2009       |   | 0              |   | -                                            |   | 0               |   | 300,000        |   |
| June      1-30, 2009      |   | 0              |   | -                                            |   | 0               |   | 300,000        |   |
| July      1-31, 2009      |   | 0              |   | -                                            |   | 0               |   | 300,000        |   |
| August      1-31, 2009    |   | 0              |   | -                                            |   | 0               |   | 300,000        |   |
| September      1-30, 2009 |   | 0              |   | -                                            |   | 0               |   | 300,000        |   |
| October      1-31, 2009   |   | 0              |   | -                                            |   | 0               |   | 300,000        |   |
| November      1-30, 2009  |   | 5,410          |   | 9.1650                                       |   | 5,410           |   | 294,590        |   |
| December      1-31, 2009  |   | 0              |   | -                                            |   | 0               |   | 294,590        |   |
| January      1-31, 2010   |   | 20,827         |   | 9.7000                                       |   | 20,827          |   | 273,763        |   |
| Total                     |   | 26,237         |   | $9.5900                                      |   | 26,237          |   | 273,763        |   |

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Index

Item 6.    Selected FinancialData:

|                                                 | Years      ended January 31, |   |
|------------------------------------------------------|------------------------------|--------|
|                                                 | 2010                         |   | 2009 |   | 2008 |   |   | 2007 |   | 2006 |   |
|                                                 |                         |   |   |   |   |   |   |   |   |   |   |
| Selected      Operating Statement Data               |                         |   |   |   |   |   |   |   |   |   |   |
| Net      sales                                       | $80,132,493                  |   | $103,391,926 |   | $106,867,849 |   |   | $93,505,504 |   | $87,687,053 |   |
| Income      from operations                          | 6,512,555                    |   | 14,057,079 |   | 17,597,491 | (1) |   | 9,757,075 |   | 9,662,604 |   |
| Net      income                                      | 4,439,811                    |   | 9,861,065 |   | 11,906,165 | (2) |   | 6,926,804 |   | 7,313,284 |   |
| Earnings      per share, basic                       | .30                          |   | .66 |   | .79 | (3) |   | .46 |   | .49 |   |
| Earnings      per share, diluted                     | .30                          |   | .65 |   | .78 | (4) |   | .46 |   | .48 |   |
|                                                 |                         |   |   |   |   |   |   |   |   |   |   |
| Selected      Balance Sheet Data                     |                         |   |   |   |   |   |   |   |   |   |   |
| Current      assets                                  | $63,245,243                  |   | $64,161,732 |   | $68,095,140 |   |   | $58,803,353 |   | $53,413,413 |   |
| Current      liabilities                             | 10,198,047                   |   | 12,239,667 |   | 16,850,801 |   |   | 14,364,393 |   | 14,361,953 |   |
| Working      capital                                 | 53,047,196                   |   | 51,922,065 |   | 51,244,339 |   |   | 44,438,960 |   | 39,051,460 |   |
| Current      ratio                                   | 6.2                          |   | 5.2 |   | 4.0 |   |   | 4.1 |   | 3.7 |   |
| Total      assets                                    | 104,608,359                  |   | 104,752,304 |   | 109,410,903 |   |   | 96,741,657 |   | 89,071,391 |   |
| Long-term      obligations                           | 3,536,755                    |   | 3,753,228 |   | 4,075,682 |   |   | 5,417,990 |   | 2,723,586 |   |
| Total      shareholders’ equity                | 80,977,584                   |   | 78,777,481 |   | 83,243,168 |   |   | 72,313,132 |   | 67,538,238 |   |
| Total      capitalization                            | 84,514,339                   |   | 82,530,709 |   | 87,318,850 |   |   | 77,731,122 |   | 70,261,824 |   |
| Return      on average total assets, %               | 4.2                          |   | 9.2 |   | 11.6 |   |   | 7.5 |   | 8.5 |   |
| Return      on average shareholders’ equity, % | 5.6                          |   | 12.2 |   | 15.3 |   |   | 9.9 |   | 11.2 |   |
|                                                 |                         |   |   |   |   |   |   |   |   |   |   |
| Other      Financial Data                            |                         |   |   |   |   |   |   |   |   |   |   |
| Net      cash flows from operating activities        | $15,645,713                  |   | $12,142,087 |   | $9,875,144 |   |   | $3,900,152 |   | $4,441,414 |   |
| Capital      expenditures                            | 2,133,807                    |   | 1,580,528 |   | 5,456,418 |   |   | 4,398,910 |   | 4,151,253 |   |
| Dollar      value of share repurchases               | 251,612                      |   | 7,694,333 |   | 630,515 |   |   | - |   | 140,135 |   |
| Shareholders’      equity per share            | 5.54                         |   | 5.40 |   | 5.56 |   |   | 4.84 |   | 4.53 |   |
| Cash      dividends paid per share                   | .240                         |   | .230 |   | .207 |   |   | .191 |   | .178 |   |
| Average      common shares, basic                    | 14,602,276                   |   | 14,909,809 |   | 15,002,012 |   |   | 14,943,174 |   | 14,918,209 |   |
| Average      common shares, diluted                  | 14,675,735                   |   | 15,219,540 |   | 15,328,368 |   |   | 15,205,012 |   | 15,111,483 |   |
| Common      shares outstanding                       | 14,617,015                   |   | 14,600,109 |   | 15,039,030 |   |   | 14,953,658 |   | 14,929,480 |   |

| (1)   | Includes      $3,513,940 from the sale of a building owned by the Company in Hauppauge,      New York. |
|-----------------|--------------------------------------------------------------------------------------------------------|

| (2)   | Includes      $2,213,782 (net of tax) from the sale of a building owned by the Company      in Hauppauge, New York. |
|-----------------|---------------------------------------------------------------------------------------------------------------------|

| (3)   | Includes      $0.14 per share from the sale of a building owned by the Company in      Hauppauge, New York. |
|-----------------|-------------------------------------------------------------------------------------------------------------|

| (4)   | Includes      $0.15 per share from the sale of a building owned by the Company in      Hauppauge, New York. |
|-----------------|-------------------------------------------------------------------------------------------------------------|

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Index

Item 7.    Management’s Discussion and Analysisof Financial Condition and Results of Operations:

|                                             |   | Years      ended January 31, |
|--------------------------------------------------|--------|------------------------------|
|                                             | 2010   |                         | 2009 |   | 2008 |   |
| Net      sales                                   | 100.0  | %                            | 100.0 | % | 100.0 | % |
| Cost      of goods sold                          | 65.8   | %                            | 65.1 | % | 66.0 | % |
| Gross      profit                                | 34.2   | %                            | 34.9 | % | 34.0 | % |
|                                             |   |                         |   |   |   |   |
| Selling,      general and administrative expense | 26.1   | %                            | 21.3 | % | 20.8 | % |
| Gain      on sale of building                    | -      |                         | - |   | (3.3 | %) |
| Income      from operations                      | 8.1    | %                            | 13.6 | % | 16.5 | % |
|                                             |   |                         |   |   |   |   |
| Interest      expense                            | (.3    | %)                           | (.2 | %) | (.3 | %) |
| Other      income, net                           | .4     | %                            | .4 | % | .9 | % |
| Income      before taxes                         | 8.2    | %                            | 13.8 | % | 17.1 | % |
|                                             |   |                         |   |   |   |   |
| Provision      for taxes                         | 2.7    | %                            | 4.3 | % | 6.0 | % |
|                                             |   |                         |   |   |   |   |
| Net      income                                  | 5.5    | %                            | 9.5 | % | 11.1 | % |

----

Index

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Index

|                   |   |       |   |        |   |      |   |       |   |          |   | Total       |
|------------------------|--------|------------|--------|-------------|--------|-----------|--------|------------|--------|---------------|--------|-------------|
|                   |   |       |   |        |   |      |   |       |   |          |   | Contractual |
| Payments      Due By   |   | Long-Term  |   | Purchase    |   | Operating |   | Interest   |   | Pension       |   | Cash        |
| Period                 |   | Debt       |   | Obligations |   | Leases    |   | Expense    |   | Contributions |   | Obligations |
| Less      than 1 Year  |   | $534,252   |   | $4,447,507  |   | $59,396   |   | $204,521   |   | $1,504,508    |   | $6,750,184  |
| 1      – 3 Years |   | 933,672    |   | -           |   | 6,183     |   | 343,445    |   | 1,892,555     |   | 3,175,855   |
| 3      – 5 Years |   | 744,936    |   | -           |   | -         |   | 255,982    |   | 1,882,897     |   | 2,883,815   |
| More      than 5 Years |   | 1,600,162  |   | -           |   | -         |   | 312,674    |   | 390,743       |   | 2,303,579   |
| Total                  |   | $3,813,022 |   | $4,447,507  |   | $65,579   |   | $1,116,622 |   | $5,670,703    |   | $15,113,433 |

| · | Level      1 – Quoted prices (unadjusted) in active markets for identical,      unrestricted assets or liabilities that the Company has the ability to      access at the measurement date; |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| · | Level      2 – Inputs other than quoted prices included in Level 1 that are      observable for the asset or liability, either directly or indirectly;      and |
|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| · | Level      3 – Unobservable inputs used in valuation in which there is little market      activity for the asset or liability at the measurement    date. |
|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

Index

----

Index

----

Index

Forward-Looking Statements; Factors That May Affect FutureResults:

| · | the      write-down of goodwill, as a result of the determination that the acquired      business is impaired.  Flex-Kleen, which initially performed      well after being acquired by Met-Pro, thereafter had several years of      declining performance which we attributed primarily to a general weakness      in its served markets, followed by improved performance in the fiscal      years ended January 31, 2007, 2008, and 2009.  In the fiscal      year ended January 31, 2010, Flex-Kleen’s net sales and operating profit      were below the projections in our impairment model, which we believe is a      reflection of the downturn in global business and economic conditions      during this period of time and is not due to any new development specific      to Flex-Kleen.  During the fiscal year ended January 31, 2010,      we performed an impairment analysis of the $11.1 million of goodwill that      the Company carries for Flex-Kleen and concluded that no impairment had      occurred. Flex-Kleen’s business must improve in the fiscal year ended      January 31, 2011 in order for us to avoid an impairment charge. We      anticipate that Flex-Kleen’s performance during the fiscal year beginning      February 1, 2010 will be at a level that will not indicate impairment of      its goodwill, but this expectation is a forward-looking statement where      the actual results may not be as we presently  anticipate; |
|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| · | materially      adverse changes in economic conditions (i) in the markets served by us or      (ii) in significant customers of ours;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| · | material      changes in available technology;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| · | adverse      developments in the asbestos cases that have been filed against the      Company, including without limitation the exhaustion of insurance      coverage, the imposition of punitive damages or other adverse developments      in the availability of insurance coverage;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| · | changes      in accounting rules promulgated by regulatory agencies, including the SEC,      which could result in an impact on earnings;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| · | the      cost of compliance with Sarbanes-Oxley and other applicable legal and      listing requirements, and the unanticipated possibility that Met-Pro may      not meet these requirements;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| · | weaknesses      in our internal control over financial reporting, which either alone or      combined with actions by our employees intended to circumvent our internal      control over financial reporting, to violate our policies, or to commit      fraud or other bad acts, could lead to incorrect reporting of financial      results.  Although we have instituted controls and procedures      intended to improve our internal control over financial reporting there      are limits to any control system and we cannot give absolute assurance      that our internal control is effective or that financial statement      misstatements will not occur or that policy violations and/or fraud within      the Company will not occur;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| · | unexpected      results in our product development activities;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| · | loss      of key customers;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| · | changes      in product mix and the cost of materials, with effect on      margins;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| · | changes      in our existing management;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| · | exchange      rate fluctuations;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| · | changes      in federal laws, state laws and regulations;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| · | lower      than anticipated return on investments in the Company’s defined benefit      plans, which could affect the amount of the Company’s pension      liabilities;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| · | the      assertion of litigation claims that the Company’s products, including      products produced by companies acquired by the Company, infringe third      party patents or have caused injury, loss or damage;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| · | the      effect of acquisitions and other strategic ventures;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| · | failure      to properly quote and/or execute customer orders, including      misspecifications, design, engineering or  production                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |

----

Index

|   | errors;                                                         |
|--------|-----------------------------------------------------------------|
| · | the      cancellation or delay of purchase orders or shipments; |
| · | losses      related to international sales; and/or              |
| · | failure      in execution of acquisitionstrategy.               |

Item 7A. Quantitative and QualitativeDisclosure About Market Risks:

----

Index

| Item      8.    | Financial      Statements and Supplementary Data:                       |                                                                        |
|--------------------------------|-------------------------------------------------------------------------|-----------------------------------------------------------------------------|
|                           |                                                                    |                                                                        |
|                           | Index      to Consolidated Financial Statements and Supplementary Data: |                                                                        |
|                           |                                                                    |                                                                        |
|                           |                                                                    | Page                                                                        |
|                           | Consolidated      Financial Statements:                                 |                                                                        |
|                           |                                                                    | Management’s Report on Internal Control Over Financial      Reporting | 30 |
|                           |                                                                    | Reports of Independent Registered Public      Accounting Firms              | 31 |
|                           |                                                                    | Consolidated Statement of Income                                            | 34 |
|                           |                                                                    | Consolidated Balance Sheet                                                  | 35 |
|                           |                                                                    | Consolidated Statement of Cash Flows                                        | 36 |
|                           |                                                                    | Consolidated Statement of Shareholders’      Equity                   | 37 |
|                           |                                                                    | Notes to Consolidated Financial    Statements                               | 38 |
|                           | Supplementary      Data:                                                |                                                                        |
|                           |                                                                    | Quarterly Financial Data                                                    | 61 |

----

Index

MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIALREPORTING

|   |                                       |
|--------|--------------------------------------------|
|   | /s/      Raymond J. De Hont                |
|   | Raymond      J. De Hont                    |
|   | President      and Chief Executive Officer |
|   |                                       |
|   |                                       |
|   | /s/      Gary J. Morgan                    |
|   | Gary      J. Morgan                        |
|   | Chief      Financial Officer               |
|   |                                       |

----

Index

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTINGFIRM

| /s/      Marcum LLP |   |
|---------------------|--------|

----

Index

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTINGFIRM

| /s/      Margolis & Company P.C. |   |
|--------------------------------------|--------|

----

Index

| /s/      Marcum LLP |   |
|---------------------|--------|

----

Index

CONSOLIDATED STATEMENT OF INCOME

|                                        |   | Years ended January      31, |   |
|---------------------------------------------|--------|------------------------------|--------|
|                                        |   | 2010                    |   |   | 2009 |   |   | 2008 |   |
| Net      sales                              |   | $80,132,493                  |   |   | $103,391,926 |   |   | $106,867,849 |   |
| Cost      of goods sold                     |   | 52,755,941                   |   |   | 67,290,930 |   |   | 70,495,481 |   |
| Gross      profit                           |   | 27,376,552                   |   |   | 36,100,996 |   |   | 36,372,368 |   |
|                                        |   |                         |   |   |   |   |   |   |   |
| Operating      expenses                     |   |                         |   |   |   |   |   |   |   |
|   Selling                         |   | 9,741,528                    |   |   | 10,704,584 |   |   | 11,484,530 |   |
|   General      and administrative |   | 11,122,469                   |   |   | 11,339,333 |   |   | 10,804,287 |   |
|   Gain      on sale of building   |   | -                            |   |   | - |   |   | (3,513,940 | ) |
|                                        |   | 20,863,997                   |   |   | 22,043,917 |   |   | 18,774,877 |   |
| Income      from operations                 |   | 6,512,555                    |   |   | 14,057,079 |   |   | 17,597,491 |   |
|                                        |   |                         |   |   |   |   |   |   |   |
| Interest      expense                       |   | (224,143                     | )      |   | (228,249 | ) |   | (304,325 | ) |
| Other      income, net                      |   | 260,177                      |   |   | 429,074 |   |   | 968,715 |   |
| Income      before taxes                    |   | 6,548,589                    |   |   | 14,257,904 |   |   | 18,261,881 |   |
|                                        |   |                         |   |   |   |   |   |   |   |
| Provision      for taxes                    |   | 2,108,778                    |   |   | 4,396,839 |   |   | 6,355,716 |   |
| Net      income                             |   | $4,439,811                   |   |   | $9,861,065 |   |   | $11,906,165 |   |
|                                        |   |                         |   |   |   |   |   |   |   |
| Earnings      per share                     |   |                         |   |   |   |   |   |   |   |
|   Basic                           |   | $.30                         |   |   | $.66 |   |   | $.79 |   |
|   Diluted                         |   | $.30                         |   |   | $.65 |   |   | $.78 |   |
|                                        |   |                         |   |   |   |   |   |   |   |
| Average      number of common and           |   |                         |   |   |   |   |   |   |   |
| common      equivalent shares outstanding   |   |                         |   |   |   |   |   |   |   |
|   Basic                           |   | 14,602,276                   |   |   | 14,909,809 |   |   | 15,002,012 |   |
|   Diluted                         |   | 14,675,735                   |   |   | 15,219,540 |   |   | 15,328,368 |   |

----

Index

CONSOLIDATED BALANCE SHEET

|                                                                                                                            | January      31, |   |
|---------------------------------------------------------------------------------------------------------------------------------|------------------|--------|
| ASSETS                                                                                                                          | 2010             |   | 2009 |   |
| Current      assets                                                                                                             |             |   |   |   |
|    Cash      and cash equivalents                                                                                | $31,387,108      |   | $21,749,653 |   |
|    Accounts      receivable, net of allowance for                                                                |             |   |   |   |
|            doubtful      accounts of approximately                       |             |   |   |   |
|            $204,000      and $167,000, respectively                      | 14,011,950       |   | 20,177,672 |   |
|    Inventories                                                                                                   | 16,136,521       |   | 20,236,865 |   |
|    Prepaid      expenses, deposits and other current assets                                                      | 1,709,664        |   | 1,997,542 |   |
|                  Total      current assets | 63,245,243       |   | 64,161,732 |   |
|                                                                                                                            |             |   |   |   |
| Property,      plant and equipment, net                                                                                         | 19,860,751       |   | 19,389,597 |   |
| Goodwill                                                                                                                        | 20,798,913       |   | 20,798,913 |   |
| Other      assets                                                                                                               | 703,452          |   | 402,062 |   |
|                  Total      assets         | $104,608,359     |   | $104,752,304 |   |

| LIABILITIES      AND SHAREHOLDERS’ EQUITY                                                                                                             |         |   |         |   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------|--------|--------------|--------|
| Current      liabilities                                                                                                                                    |         |   |         |   |
|    Current      portion of long-term debt                                                                                                    | $534,251     |   | $746,042     |   |
|    Accounts      payable                                                                                                                     | 4,297,936    |   | 5,464,629    |   |
|    Accrued      salaries, wages and expenses                                                                                                 | 3,425,691    |   | 4,546,199    |   |
|    Dividend      payable                                                                                                                     | 876,279      |   | 876,007      |   |
|    Customers’      advances                                                                                                            | 882,637      |   | 356,008      |   |
|    Deferred      income taxes                                                                                                                | 181,253      |   | 250,782      |   |
|                  Total      current liabilities                        | 10,198,047   |   | 12,239,667   |   |
|                                                                                                                                                        |         |   |         |   |
| Long-term      debt                                                                                                                                         | 3,536,755    |   | 3,753,228    |   |
| Other      non-current liabilities                                                                                                                          | 8,179,410    |   | 8,855,912    |   |
| Deferred      income taxes                                                                                                                                  | 1,716,563    |   | 1,126,016    |   |
|                  Total      liabilities                                | 23,630,775   |   | 25,974,823   |   |
| Commitments                                                                                                                                                 |         |   |         |   |
| Shareholders’      equity                                                                                                                             |         |   |         |   |
|    Common      shares, $.10 par value; 36,000,000 shares                                                                                     |         |   |         |   |
|            authorized,      15,928,679 shares issued,                                                |         |   |         |   |
|            of      which 1,311,664 and 1,328,570 shares were reacquired                              |         |   |         |   |
|            and      held in treasury at the respective dates                                         | 1,592,868    |   | 1,592,868    |   |
|    Additional      paid-in capital                                                                                                           | 2,988,950    |   | 2,465,193    |   |
|    Retained      earnings                                                                                                                    | 90,662,820   |   | 89,727,308   |   |
|    Accumulated      other comprehensive loss                                                                                                 | (3,679,641   | )      | (4,324,293   | )      |
|    Treasury      shares, at cost                                                                                                             | (10,587,413  | )      | (10,683,595  | )      |
|                  Total      shareholders’ equity                 | 80,977,584   |   | 78,777,481   |   |
|                  Total      liabilities and shareholders’ equity | $104,608,359 |   | $104,752,304 |   |

----

Index

CONSOLIDATED STATEMENT OF CASH FLOWS

|                                                                                                                                                                                                                                                                                                                                                                             | Years      ended January 31, |   |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                             | 2010                         |   | 2009 |   | 2008 |   |
|                                                                                                                                                                                                                                                                                                                                                                             |                         |   |   |   |   |   |
| Cash      flows from operating activities                                                                                                                                                                                                                                                                                                                                        |                         |   |   |   |   |   |
|      Net      income                                                                                                                                                                                                                                                                                                                                    | $4,439,811                   |   | $9,861,065 |   | $11,906,165 |   |
|      Adjustments      to reconcile net income to net                                                                                                                                                                                                                                                                                                    |                         |   |   |   |   |   |
|                 cash      provided by operating activities:                                                                                                                                                                                                                                      |                         |   |   |   |   |   |
|          Depreciation      and amortization                                                                                                                                                                                                                                                                                         | 1,931,512                    |   | 1,924,611 |   | 1,738,625 |   |
|          Deferred      income taxes                                                                                                                                                                                                                                                                                                 | 406,754                      |   | 913,356 |   | 1,369,460 |   |
|          (Gain)      on sales of property and equipment,      net                                            | (20,585                      | )      | (18,174 | ) | (3,556,088 | ) |
|          Loss      on sale of investments                                                                                                                                                                                                                                                                                           | -                            |   | 11,102 |   | - |   |
|          Stock-based      compensation                                                                                                                                                                                                                                                                                              | 645,967                      |   | 432,204 |   | 510,108 |   |
|          Allowance      for doubtful accounts                                                                                                                                                                                                                                                                                       | 37,189                       |   | 14,695 |   | 19,352 |   |
|          Change      in operating assets and liabilities:                                                                                                                                                                                                                                                                           |                         |   |   |   |   |   |
|              Accounts      receivable                                                                                                                                                                                                                                                                           | 6,409,090                    |   | 2,414,216 |   | (2,633,358 | ) |
|              Inventories                                                                                                                                                                                                                                                                                        | 4,280,330                    |   | 723,256 |   | (1,197,111 | ) |
|              Prepaid      expenses, deposits and other assets                                                                                                                                                                                                                                                   | (9,904                       | )      | (279,422 | ) | (116,746 | ) |
|              Accounts      payable and accrued expenses                                                                                                                                                                                                                                                         | (2,551,921                   | )      | (3,113,308 | ) | 2,654,425 |   |
|              Customers’      advances                                                                                                                                                                                                                                                                     | 524,678                      |   | 96,670 |   | (723,531 | ) |
|              Other      non-current liabilities                                                                                                                                                                                                                                                                 | (447,208                     | )      | (838,184 | ) | (96,157 | ) |
|              Net cash provided by operating      activities                                                                                                                                                                                                                                                     | 15,645,713                   |   | 12,142,087 |   | 9,875,144 |   |
|                                                                                                                                                                                                                                                                                                                                                                             |                         |   |   |   |   |   |
| Cash      flows from investing activities                                                                                                                                                                                                                                                                                                                                        |                         |   |   |   |   |   |
|      Proceeds      from sales of property and equipment                                                                                                                                                                                                                                                                                                 | 40,318                       |   | 20,785 |   | 4,396,164 |   |
|      Acquisitions      of property and equipment                                                                                                                                                                                                                                                                                                        | (2,133,807                   | )      | (1,580,528 | ) | (5,456,418 | ) |
|      Increase      in securities available for sale                                                                                                                                                                                                                                                                                                     | -                            |   | (472 | ) | - |   |
|      Proceeds      from sale of securities                                                                                                                                                                                                                                                                                                              | -                            |   | 11,190 |   | - |   |
|              Net cash (used in) investing      activities                                                                                                                                                                                                                                                       | (2,093,489                   | )      | (1,549,025 | ) | (1,060,254 | ) |
|                                                                                                                                                                                                                                                                                                                                                                             |                         |   |   |   |   |   |
| Cash      flows from financing activities                                                                                                                                                                                                                                                                                                                                        |                         |   |   |   |   |   |
|      Proceeds      from new borrowings                                                                                                                                                                                                                                                                                                                  | 485,336                      |   | - |   | - |   |
|      Reduction      of debt                                                                                                                                                                                                                                                                                                                             | (926,497                     | )      | (1,664,252 | ) | (1,499,334 | ) |
|      Exercise      of stock options                                                                                                                                                                                                                                                                                                                     | 225,584                      |   | 1,912,398 |   | 1,081,835 |   |
|      Payment      of dividends                                                                                                                                                                                                                                                                                                                          | (3,504,026                   | )      | (3,359,962 | ) | (3,101,839 | ) |
|      Purchase      of treasury shares                                                                                                                                                                                                                                                                                                                   | (251,612                     | )      | (7,694,333 | ) | (630,515 | ) |
|      Payment      of cash in lieu of fractional shares                                                                                                                                                                                                                                                                                                  | -                            |   | - |   | (1,642 | ) |
|              Net cash (used in) financing      activities                                                                                                                                                                                                                                                       | (3,971,215                   | )      | (10,806,149 | ) | (4,151,495 | ) |
| Effect      of exchange rate changes on cash                                                                                                                                                                                                                                                                                                                                     | 56,446                       |   | 55,863 |   | (78,712 | ) |
| Net      increase (decrease) in cash and cash equivalents                                                                                                                                                                                                                                                                                                                        | 9,637,455                    |   | (157,224 | ) | 4,584,683 |   |
|                                                                                                                                                                                                                                                                                                                                                                             |                         |   |   |   |   |   |
| Cash      and cash equivalents at beginning of year                                                                                                                                                                                                                                                                                                                              | 21,749,653                   |   | 21,906,877 |   | 17,322,194 |   |
| Cash      and cash equivalents at end of year                                                                                                                                                                                                                                                                                                                                    | $31,387,108                  |   | $21,749,653 |   | $21,906,877 |   |

----

Index

CONSOLIDATED STATEMENT OF SHAREHOLDERS’EQUITY

|                                                                                        |       |       |       |          | Accumulated |   |   |        |   |
|---------------------------------------------------------------------------------------------|------------|------------|------------|---------------|-------------|--------|--------|-------------|--------|
|                                                                                        |       | Additional |       |          | Other       |   |   |        |   |
|                                                                                        | Common     | Paid-in    | Retained   | Comprehensive | Treasury    |   |   |
|                                                                                        | Shares     | Capital    | Earnings   | Income/(Loss) | Shares      | Total  |   |
| Balances,      January 31, 2007                                                             | $1,284,661 |       | $7,910,708 |          | $74,657,888 |   |   | ($33,471    | )      |   | ($11,506,654 | ) | $72,313,132 |   |
| Comprehensive      income:                                                                  |       |       |       |          |        |   |   |        |   |   |   |   |   |   |
|    Net      income                                                           | -          |       | -          |          | 11,906,165  |   |   | -           |   |   | - |   |   |   |
|    Adoption      of ASC Topic 740                                            | -          |       | -          |          | (125,000    | )      |   | -           |   |   | - |   |   |   |
|    Foreign      currency translation adjustment                              | -          |       | -          |          | -           |   |   | 760,412     |   |   | - |   |   |   |
|    Interest      rate swap, net of tax of $34,645                            | -          |       | -          |          | -           |   |   | (58,990     | )      |   | - |   |   |   |
|    Securities      available for sale, net of tax of $1,377                  | -          |       | -          |          | -           |   |   | (2,344      | )      |   | - |   |   |   |
|    Minimum      pension liability adjustment,                                |       |       |       |          |        |   |   |        |   |   |   |   |   |   |
|       net      of tax of ($396,323)                           | -          |       | -          |          | -           |   |   | 674,820     |   |   | - |   |   |   |
|           Total      comprehensive income |       |       |       |          |        |   |   |        |   |   |   |   | 13,155,063 |   |
| Stock      split four-for-three                                                             | 398,220    |       | (398,220   | )             | -           |   |   | -           |   |   | - |   | - |   |
| Cash      in lieu of fractional shares                                                      | -          |       | (1,642     | )             | -           |   |   | -           |   |   | - |   | (1,642 | ) |
| Dividends      paid, $.1518 per share                                                       | -          |       | -          |          | (2,344,810  | )      |   | -           |   |   | - |   | (2,344,810 | ) |
| Dividend      declared, $.055 per share                                                     | -          |       | -          |          | (827,147    | )      |   | -           |   |   | - |   | (827,147 | ) |
| Stock-based      compensation                                                               | -          |       | 510,108    |          | -           |   |   | -           |   |   | - |   | 510,108 |   |
| Stock      option transactions                                                              | -          |       | 351,557    |          | -           |   |   | -           |   |   | 730,278 |   | 1,081,835 |   |
| Purchase      of 51,205 treasury shares                                                     | -          |       | -          |          | -           |   |   | -           |   |   | (630,515 | ) | (630,515 | ) |
| Treasury      share retirement (900,000 shares)                                             | (90,000    | )          | (6,462,000 | )             | -           |   |   | -           |   |   | 6,552,000 |   | - |   |
| Stock      option tax loss                                                                  | -          |       | (12,856    | )             | -           |   |   | -           |   |   | - |   | (12,856 | ) |
| Balances,      January 31, 2008                                                             | 1,592,881  |       | 1,897,655  |          | 83,267,096  |   |   | 1,340,427   |   |   | (4,854,891 | ) | 83,243,168 |   |
| Comprehensive      income:                                                                  |       |       |       |          |        |   |   |        |   |   |   |   |   |   |
|    Net      income                                                           | -          |       | -          |          | 9,861,065   |   |   | -           |   |   | - |   |   |   |
|    Pension      measurement                                                  | -          |       | -          |          | 7,969       |   |   | -           |   |   | - |   |   |   |
|    Foreign      currency translation adjustment                              | -          |       | -          |          | -           |   |   | (771,445    | )      |   | - |   |   |   |
|    Interest      rate swap, net of tax of $67,972                            | -          |       | -          |          | -           |   |   | (115,736    | )      |   | - |   |   |   |
|    Securities      available for sale, net of tax of ($537)                  | -          |       | -          |          | -           |   |   | 914         |   |   | - |   |   |   |
|    Minimum      pension liability adjustment,                                |       |       |       |          |        |   |   |        |   |   |   |   |   |   |
|       net      of tax of $2,806,393                           | -          |       | -          |          | -           |   |   | (4,778,453  | )      |   | - |   |   |   |
|           Total      comprehensive income |       |       |       |          |        |   |   |        |   |   |   |   | 4,204,314 |   |
| Dividends      paid, $.165 per share                                                        | -          |       | -          |          | (2,532,815  | )      |   | -           |   |   | - |   | (2,532,815 | ) |
| Dividend      declared, $.06 per share                                                      | -          |       | -          |          | (876,007    | )      |   | -           |   |   | - |   | (876,007 | ) |
| Stock-based      compensation                                                               | -          |       | 432,204    |          | -           |   |   | -           |   |   | - |   | 432,204 |   |
| Stock      option transactions                                                              | -          |       | 46,769     |          | -           |   |   | -           |   |   | 1,865,629 |   | 1,912,398 |   |
| Purchase      of 731,735 treasury shares                                                    | -          |       | -          |          | -           |   |   | -           |   |   | (7,694,333 | ) | (7,694,333 | ) |
| Stock      option tax benefit                                                               | -          |       | 88,552     |          | -           |   |   | -           |   |   | - |   | 88,552 |   |
| Common      share adjustment                                                                | (13        | )          | 13         |          | -           |   |   | -           |   |   | - |   | - |   |
| Balances,      January 31, 2009                                                             | 1,592,868  |       | 2,465,193  |          | 89,727,308  |   |   | (4,324,293  | )      |   | (10,683,595 | ) | 78,777,481 |   |
| Comprehensive      income:                                                                  |       |       |       |          |        |   |   |        |   |   |   |   |   |   |
|    Net      income                                                           | -          |       | -          |          | 4,439,811   |   |   | -           |   |   | - |   |   |   |
|    Foreign      currency translation adjustment                              | -          |       | -          |          | -           |   |   | 439,575     |   |   | - |   |   |   |
|    Interest      rate swap, net of tax of ($35,603)                          | -          |       | -          |          | -           |   |   | 60,621      |   |   | - |   |   |   |
|    Minimum      pension liability adjustment,                                |       |       |       |          |        |   |   |        |   |   |   |   |   |   |
|       net      of tax of  ($84,838)                 | -          |       | -          |          | -           |   |   | 144,456     |   |   | - |   |   |   |
|           Total      comprehensive income |       |       |       |          |        |   |   |        |   |   |   |   | 5,084,463 |   |
| Dividends      paid, $.18 per share                                                         | -          |       | -          |          | (2,628,020  | )      |   | -           |   |   | - |   | (2,628,020 | ) |
| Dividends      declared, $.06 per share                                                     | -          |       | -          |          | (876,279    | )      |   | -           |   |   | - |   | (876,279 | ) |
| Stock-based      compensation                                                               | -          |       | 645,967    |          | -           |   |   | -           |   |   | - |   | 645,967 |   |
| Stock      option transactions                                                              | -          |       | (122,210   | )             | -           |   |   | -           |   |   | 347,794 |   | 225,584 |   |
| Purchase      of 26,237 treasury shares                                                     | -          |       | -          |          | -           |   |   | -           |   |   | (251,612 | ) | (251,612 | ) |
| Balances,      January 31, 2010                                                             | $1,592,868 |       | $2,988,950 |          | $90,662,820 |   |   | ($3,679,641 | )      |   | ($10,587,413 | ) | $80,977,584 |   |

----

Index

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

|                            | Years            |
|---------------------------------|------------------|
| Buildings      and improvements | 10-39            |
| Machinery      and equipment    |   5-10 |
| Furniture      and fixtures     | 5-7              |
| Automotive      equipment       | 3                |

----

Index

|                                     | Product      Recovery/ Pollution Control Technologies | Fluid      Handling Technologies | MefiagFiltrationTechnologies | Filtration/Purification      Technologies |         | Total      |
|------------------------------------------|-------------------------------------------------------|----------------------------------|------------------------------|-------------------------------------------|--------------|------------|
| Balance      as of February 1, 2009      |                                                  | $15,706,667                      |                         | $11,542                                   |    | $1,732,482 |   | $3,348,222 |   |   | $20,798,913 |
| Goodwill      acquired during the period |                                                  | -                                |                         | -                                         |         | -          |   | - |   |   | - |
| Balance      as of January 31, 2010      |                                                  | $15,706,667                      |                         | $11,542                                   |         | $1,732,482 |   | $3,348,222 |   |   | $20,798,913 |

----

Index

|                                | 2010              |      | 2009   |      | 2008   |
|-------------------------------------|-------------------|-----------|--------|-----------|--------|
| Cash      paid during the year for: |              |      |   |      |   |
|                                | Interest          | $220,919  |   | $248,970  |   | $331,555 |
|                                | Income      taxes | 1,608,485 |   | 4,305,042 |   | 4,829,003 |

----

Index

| ·             | Level      1 – Quoted prices (unadjusted) in active markets for identical,      unrestricted assets or liabilities that the Company has the ability to      access at the measurement date; |
|--------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·             | Level      2 – Inputs other than quoted prices included in Level 1 that are      observable for the asset or liability, either directly or indirectly;      and |
|--------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·             | Level      3 – Unobservable inputs used in valuation in which there is little market      activity for the asset or liability at the measurement    date. |
|--------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

Index

----

Index

|                 | January      31, |
|----------------------|------------------|
|                 | 2010             |   |   2009 |
| Fair      value      | $4,422,584       |   | $4,495,781 |
| Carrying      amount | 4,071,006        |   | 4,499,270 |

|                             |                                                                                                                        | January      31, |
|----------------------------------|-----------------------------------------------------------------------------------------------------------------------------|------------------|
|                             |                                                                                                                        | 2010             |   | 2009 |   | 2008 |
| Numerator:                       |                                                                                                                        |             |   |   |   |
|                             | Net      income                                                                                                             | $4,439,811       |   | $9,861,065 |   | $11,906,165 |
| Denominator:                     |                                                                                                                        |             |   |   |   |
|                             | Weighted      average common shares outstanding during     the      period for basic computation   | 14,602,276       |   | 14,909,809 |   | 15,002,012 |
|                             | Dilutive      effect of stock-based compensation plans                                                                      | 73,459           |   | 309,731 |   | 326,356 |
|                             | Weighted      average common shares outstanding during     the      period for diluted computation | 14,675,735       |   | 15,219,540 |   | 15,328,368 |
|                             |                                                                                                                        |             |   |   |   |   |
| Earnings      per share, basic   | $.30                                                                                                                        |             | $.66 |   | $.79 |
| Earnings      per share, diluted | $.30                                                                                                                        |             | $.65 |   | $.78 |

----

Index

|                 | January      31, |
|----------------------|------------------|
|                 | 2010             |   | 2009 |
| Raw      materials   | $11,965,727      |   | $15,416,249 |
| Work      in process | 2,023,065        |   | 2,013,789 |
| Finished      goods  | 2,147,729        |   | 2,806,827 |
|                 | $16,136,521      |   | $20,236,865 |

|                               | January      31, |
|------------------------------------|------------------|
|                               | 2010             |   | 2009 |
| Land                               | $2,456,676       |   | $2,411,223 |
| Buildings      and improvements    | 19,936,325       |   | 19,534,270 |
| Machinery      and equipment       | 13,186,060       |   | 12,830,962 |
| Furniture      and fixtures        | 5,164,530        |   | 4,817,874 |
| Automotive      equipment          | 1,444,540        |   | 1,525,829 |
| Construction      in progress      | 1,293,873        |   | 221,660 |
|                               | 43,482,004       |   | 41,341,818 |
| Less      accumulated depreciation | 23,621,253       |   | 21,952,221 |
|                               | $19,860,751      |   | $19,389,597 |

----

Index

|                                                          | January      31,                                              |
|---------------------------------------------------------------|---------------------------------------------------------------|
|                                                          | 2010                                                          |   | 2009 |
| Bond      payable, bank, payable in quarterly installments of |                                                          |   |   |
|                                                          | $58,460,      plus interest at a rate equal to the greater of |   |   |   |
|                                                          | (i)      16 basis points below the ninety day LIBOR rate      |   |   |   |
|                                                          | or      (ii) 250 basis points (effective interest rate of     |   |   |   |
|                                                          | 2.50%      at January 31, 2010), maturing April, 2021,        |   |   |   |
|                                                          | collateralized      by the Telford, PA building               | $2,630,720 |   | $2,864,562 |
|                                                          |                                                          |   |   |
| Note      payable, bank, payable in quarterly installments of |                                                          |   |   |
|                                                          | $34,657      (25,000 Euro), plus interest at a fixed rate of  |   |   |   |
|                                                          | 3.82%,      maturing January, 2016                            | 831,782 |   | 896,350 |
|                                                          |                                                          |   |   |
| Equipment      note, payable in monthly installments of       |                                                          |   |   |
|                                                          | $13,482,      no interest, maturing March 2012                | 350,520 |   | - |
|                                                          |                                                          |   |   |
| Line      of credit, $415,890 (300,000 Euro), payable upon    |                                                          |   |   |
|                                                          | demand,      plus interest at a rate of 70 basis points over  |   |   |   |
|                                                          | the      thirty day EURIBOR rate (effective interest rate of  |   |   |   |
|                                                          | 1.13%      at January 31, 2010)                               | - |   | 384,150 |
|                                                          |                                                          |   |   |
|                                                          | 3,813,022                                                     |   | 4,145,062 |
| Less      current portion                                     | 534,251                                                       |   | 746,042 |
|                                                          | 3,278,771                                                     |   | 3,399,020 |
| Fair      market value of interest rate swap liability        | 257,984                                                       |   | 354,208 |
| Long-term      portion                                        | $3,536,755                                                    |   | $3,753,228 |

----

Index

| Year      Ending |       |   |
|------------------|------------|--------|
| January      31, |       |   |
| 2011             | $534,251   |   |
| 2012             | 534,252    |   |
| 2013             | 399,420    |   |
| 2014             | 372,468    |   |
| 2015             | 372,468    |   |
| Thereafter       | 1,600,163  |   |
|             | $3,813,022 |   |

|                                                  | 2010        |   | 2009        |   |
|-------------------------------------------------------|-------------|--------|-------------|--------|
| Interest      rate swap, net of tax                   | ($162,530   | )      | ($223,151   | )      |
| Foreign      currency translation adjustment          | 1,120,272   |   | 680,697     |   |
| Minimum      pension liability adjustment, net of tax | (4,637,383  | )      | (4,781,839  | )      |
|                                                  | ($3,679,641 | )      | ($4,324,293 | )      |

----

Index

|                               |  Fiscal      Years Ended |
|------------------------------------|-------------------------------|
|                               | January      31,              |
|                               | 2010                          | 2009 | 2008 |
|                               |                          |   |   |
|  Expected      term (years)   | 3.0      - 5.0                | 5.0 | 5.0 |
|  Risk-free      interest rate | 1.90%      - 4.50%            | 3.53%      - 4.50% | 4.50%      - 4.58% |
|  Expected      volatility     | 29%      - 39%                | 29% | 29%      - 30% |
|  Dividend      yield          | 1.86%      - 2.80%            | 1.86%      - 1.88% | 1.86%      - 3.39% |

|     |                                 |      |   |                |              | Weighted  |   |   |   |
|----------|--------------------------------------|-----------|--------|---------------------|-------------------|-----------|--------|--------|--------|
|     |                                 |      |   | Weighted            | Average           | Aggregate |
|     |                                 |      |   | Average             | Remaining         | Intrinsic |
|     |                                 | Shares    |   | Exercise      Price | Life      (years) | Value     |
| Options: |                                 |      |   |                |              |      |   |   |   |   |
|     | Outstanding      at February 1, 2009 | 1,193,533 |   | $9.5374             |              |      | 7.28   |   |   |   |   |
|     | Granted                              | 241,083   |   | 9.6666              |              |      |   |   |   |   |   |
|     | Forfeited                            | 6,000     |   | 11.3450             |              |      |   |   |   |   |   |
|     | Expired                              | 12,446    |   | 9.6440              |              |      |   |   |   |   |   |
|     | Exercised                            | 43,143    |   | 5.2287              |              |      |   |   |   |   |   |
|     | Outstanding      at January 31, 2010 | 1,373,027 |   | $9.6866             |              |      | 6.41   |   |   | $846,710 |   |
|     |                                 |      |   |                |              |      |   |   |   |   |   |
|     | Exercisable      at January 31, 2010 | 939,072   |   | $9.3105             |              |      | 6.41   |   |   | $846,710 |   |

----

Index

|                      |   |   | Options      Outstanding |                  | Options      Exercisable |
|---------------------------|--------|--------|--------------------------|-----------------------|--------------------------|
|                      |   |   |                     | Weighted      Average |                     |   |   |   |
|                      |   |   |                     | Remaining             | Weighted      Average    |   |   | Weighted      Average |
|                      |   |   | Shares                   | Life      (years)     | Exercise      Price      |   | Shares | Exercise      Price |
| Range      of prices:     |   |   |                     |                  |                     |   |   |   |   |   |   |   |   |
| $5.00      – 5.49   |   |   | 24,180                   |                  | 1.07                     |   | $5.1047 |   |   | 24,180 |   | $5.1047 |   |
| $5.50      – 6.99   |   |   | 113,072                  |                  | 2.80                     |   | 5.5259 |   |   | 113,072 |   | 5.5259 |   |
| $7.00      – 8.99   |   |   | 133,896                  |                  | 4.47                     |   | 7.4539 |   |   | 133,896 |   | 7.4539 |   |
| $9.00      – 9.99   |   |   | 505,874                  |                  | 7.14                     |   | 9.4763 |   |   | 269,791 |   | 9.2893 |   |
| $10.00      – 10.99 |   |   | 190,005                  |                  | 5.95                     |   | 10.8975 |   |   | 190,005 |   | 10.8975 |   |
| $11.00      – 11.99 |   |   | 406,000                  |                  | 7.68                     |   | 11.5499 |   |   | 208,128 |   | 11.6283 |   |
|                      |   |   | 1,373,027                |                  | 6.41                     |   | $9.6866 |   |   | 939,072 |   | $9.3105 |   |

----

Index

|                            | 2010       |   | 2009       |   | 2008       |
|---------------------------------|------------|--------|------------|--------|------------|
| Current                         |       |   |       |   |       |
|     Federal | $1,464,160 |   | $2,880,591 |   | $4,261,462 |
|     State   | 199,327    |   | 463,805    |   | 560,130    |
|     Foreign | 38,537     |   | 139,087    |   | 164,664    |
|                            | 1,702,024  |   | 3,483,483  |   | 4,986,256  |
| Deferred                        | 406,754    |   | 913,356    |   | 1,369,460  |
|                            | $2,108,778 |   | $4,396,839 |   | $6,355,716 |

|                                                       | January      31, |   |
|------------------------------------------------------------|------------------|--------|
|                                                       | 2010             |   | 2009 |   |
| Deferred      tax assets                                   |             |   |   |   |
|     Inventory      cost capitalization | $166,561         |   | $135,618 |   |
|     Pension      cost                  | 3,045,811        |   | 3,296,978 |   |
|     Non-compete      agreements        | 64,033           |   | 96,100 |   |
| Other                                                      | 555,791          |   | 517,998 |   |
| Total      deferred tax assets                             | 3,832,196        |   | 4,046,694 |   |
|                                                       |             |   |   |   |
| Deferred      tax liabilities                              |             |   |   |   |
| Property,      plant and equipment                         | 1,928,751        |   | 1,890,240 |   |
| Inventory      – LIFO                                | 363,723          |   | 363,722 |   |
| Prepaid      expenses                                      | 195,910          |   | 226,635 |   |
| Goodwill                                                   | 3,241,628        |   | 2,942,895 |   |
| Total      deferred tax liabilities                        | 5,730,012        |   | 5,423,492 |   |
| Net      deferred tax (liabilities)                        | ($1,897,816      | )      | ($1,376,798 | ) |

|                                                 | 2010                                  | 2009   | 2008   |
|------------------------------------------------------|---------------------------------------|--------|--------|
| Computed      expected                               |                                  |   |   |   |   |   |   |   |   |   |   |   |
|     federal      tax expense     | $2,226,520                            |   | 34.0   | % | $4,847,687 |   | 34.0 | % | $6,239,308 |   | 34.2 | % |
| Manufacturing      exemption                         |  (129,428                        | )      | (2.0   | ) |  (187,029 | ) | (1.4 | ) |  (291,025 | ) | (1.6 | ) |
| State      income taxes,                             |                                  |   |   |   |   |   |   |   |   |   |   |   |
|     net      of federal          |                                  |   |   |   |   |   |   |   |   |   |   |   |
|     income      tax benefit      | 131,556                               |   | 2.0    |   | 306,111 |   | 2.1 |   | 369,686 |   | 2.0 |   |
| Research      and                                    |                                  |   |   |   |   |   |   |   |   |   |   |   |
|     development      tax credits | (121,917                              | )      | (1.9   | ) | (105,463 | ) | (.7 | ) | (104,435 | ) | (.6 | ) |
| Stock      option tax expense/                       |                                  |   |   |   |   |   |   |   |   |   |   |   |
|     (benefit)                    | 82,030                                |   | 1.3    |   | (591,550 | ) | (4.1 | ) | - |   | - |   |
| Other                                                |      (79,983 | )      | (1.2   | ) |      127,083 |   | .9 |   | 142,182 |   |        .8 |   |
| Effective      income taxes                          | $2,108,778                            |   | 32.2   | % | $4,396,839 |   | 30.8 | % | $6,355,716 |   |  34.8 | % |

----

Index

|                                             | 2010    |   |
|--------------------------------------------------|---------|--------|
| Balance      at February 1, 2009                 | $40,000 |   |
| Increases      in tax positions for prior years  | -       |   |
| Decreases      in tax positions for prior years  | (40,000 | )      |
| Increases      in tax positions for current year | -       |   |
| Balance      at January 31, 2010                 | $0      |   |

|                 | Open      Tax Year           |
|----------------------|------------------------------|
|                 |                         |   |        Examination Not      Yet |
|                 | Examination      in Progress |   |  Initiated |
| United      States   |                         |   |   |
| Federal              | n/a                          |   | 2009      – 2010 |
| State                | n/a                          |   | 2007      – 2010 |
| Canada               | n/a                          |   | 2006      – 2010 |
| The      Netherlands | n/a                          |   | 2007      – 2010 |

| 2011 | $59,396 |   |
|------|---------|--------|
| 2012 | 6,183   |   |

----

Index

|                                                  | 2010      |   | 2009       |   | 2008       |   |
|-------------------------------------------------------|-----------|--------|------------|--------|------------|--------|
| Service      cost - benefits earned during the period | $69,225   |   | $144,072   |   | $148,258   |   |
| Interest      cost on projected benefit obligation    | 1,134,779 |   | 1,349,383  |   | 1,040,164  |   |
| Expected      return on assets                        | (785,901  | )      | (1,653,966 | )      | (1,259,503 | )      |
| Amortization                                          | 240,890   |   | 39,006     |   | 74,032     |   |
| Curtailment      loss                                 | -         |   | 51,044     |   | -          |   |
|                                                  | $658,993  |   | ($70,461   | )      | $2,951     |   |

----

Index

|                                                                      | 2010        |   | 2009        |   |
|---------------------------------------------------------------------------|-------------|--------|-------------|--------|
|                                                                      |        |   |        |   |
| Change      in benefit obligation:                                        |        |   |        |   |
| Benefit      obligation at beginning of year                              | $18,045,229 |   | $17,976,905 |   |
|     Service      cost                                 | 69,225      |   | 144,072     |   |
|     Interest      cost                                | 1,134,779   |   | 1,349,383   |   |
|     Actuarial      (gain)/loss                        | 1,445,883   |   | (80,183     | )      |
|     Curtailments                                      | -           |   | (209,217    | )      |
|     Benefits      paid                                | (984,041    | )      | (1,135,731  | )      |
| Benefit      obligation at end of year                                    | $19,711,075 |   | $18,045,229 |   |
|  Change      in plan assets:                                         |        |   |        |   |
| Fair      value of plan assets at beginning of year                       | $9,261,376  |   | $15,815,882 |   |
|     Actual      gain/(loss) on plan assets            | 2,431,096   |   | (6,310,330  | )      |
|     Employer      contribution                        | 1,433,410   |   | 891,555     |   |
|     Administrative      expenses                      | (210,908    | )      | -           |   |
|     Benefits      paid                                | (984,041    | )      | (1,135,731  | )      |
| Fair      value of plan assets at end of year                             | $11,930,933 |   | $9,261,376  |   |
|  Funded      status:                                                 | ($7,780,142 | )      | ($8,783,853 | )      |
|     Unrecognized      actuarial loss                  | 7,360,926   |   | 7,591,063   |   |
|     Unrecognized      prior service costs             | -           |   | (843        | )      |
| Net      amount recognized                                                | ($419,216   | )      | ($1,193,633 | )      |
|                                                                      |        |   |        |   |
| Amounts      recognized in the consolidated balance sheet consist of:     |        |   |        |   |
|     Accrued      benefit liability – short term | ($104,508   | )      | ($104,639   | )      |
|     Accrued      benefit liability – long term  | (7,675,634  | )      | (8,679,214  | )      |
|     Accumulated      other comprehensive gain         | 7,360,926   |   | 7,590,220   |   |
| Net      amount recognized                                                | ($419,216   | )      | ($1,193,633 | )      |

| Year      Ending |        |   |
|------------------|-------------|--------|
| January      31, |        |   |
| 2011             | $1,076,350  |   |
| 2012             | 1,094,815   |   |
| 2013             | 1,177,886   |   |
| 2014             | 1,212,638   |   |
| 2015             | 1,264,882   |   |
| 2016      - 2020 | 6,802,486   |   |
|             | $12,629,057 |   |

----

Index

|                                             | 2010   | 2009   | 2008   |
|--------------------------------------------------|--------|--------|--------|
| Discount      rate                               | 5.75%  | 6.50%  | 6.25%  |
| Expected      long-term rate of                  |   |   |   |
|     return      on assets    | 8.50%  | 8.50%  | 8.50%  |
| Rate      of increase in                         |   |   |   |
|     compensation      levels |   |   |   |
|     (where      applicable)  | 4.50%  | 4.50%  | 4.50%  |

|                                          | 2010   | 2009   | 2008   |
|-----------------------------------------------|--------|--------|--------|
| Discount      rate                            | 6.50%  | 6.25%  | 5.75%  |
| Expected      long-term rate of               |   |   |   |
|     return      on assets | 8.50%  | 8.50%  | 8.50%  |
| Rate      of increase in                      |   |   |   |
| compensation      levels                      |   |   |   |
| (where      applicable)                       | 4.50%  | 4.50%  | 4.50%  |

|                                                                                     | January      31, |   | January      31, |
|------------------------------------------------------------------------------------------|------------------|--------|------------------|
|                                                                                     |             | 2010   |             |   |   | 2009 |   |
| Target      allocation:                                                                  |             |   |             |   |   |
|            Equity      securities | 40-80%           |   |             | 40-80% |   |
|            Debt      securities   | 20-60%           |   |             | 20-60% |   |
|                                                                                     |             |   |             |   |   |
| Asset      allocation:                                                                   |             |   |             |   |   |
|           Equity      securities       | 77%              |   |             | 77% |   |
|           Debt      securities         | 23%              |   |             | 23% |   |
|           Total                        | 100%             |   |             | 100% |   |

----

Index

----

Index

| 1997      Plan                                 | 2010     |   | 2009     |   | 2008     |
|------------------------------------------------|----------|--------|----------|--------|----------|
| Options      outstanding, beginning            | 113,067  |   | 242,858  |   | 267,038  |
| Grants                                         | -        |   | -        |   | -        |
| Exercises                                      | 43,143   |   | 129,791  |   | 24,180   |
| Cancellations                                  | -        |   | -        |   | -        |
| Options      outstanding, ending               | 69,924   |   | 113,067  |   | 242,858  |
|                                           |     |   |     |   |     |
| Options      price range at January 31         | $5.1047  |   | $4.1133  |   | $4.1133  |
|                                           | to       |   | to       |   | to       |
|                                           | $9.6440  |   | $9.6440  |   | $9.6440  |
|                                           |     |   |     |   |     |
| Options      exercisable at January 31         | 69,924   |   | 113,067  |   | 242,858  |
| Options      available for grant at January 31 | 0        |   | 0        |   | 0        |
|                                           |     |   |     |   |     |
| 2001      Plan                                 | 2010     |   | 2009     |   | 2008     |
| Options      outstanding, beginning            | 500,483  |   | 682,973  |   | 784,703  |
| Grants                                         | -        |   | -        |   | 14,711   |
| Exercises                                      | -        |   | 143,820  |   | 112,397  |
| Cancellations                                  | 12,446   |   | 38,670   |   | 4,044    |
| Options      outstanding, ending               | 488,037  |   | 500,483  |   | 682,973  |
|                                           |     |   |     |   |     |
| Options      price range at January 31         | $5.5181  |   | $5.5181  |   | $5.5181  |
|                                           | to       |   | to       |   | to       |
|                                           | $11.7500 |   | $11.7500 |   | $11.7500 |
|                                           |     |   |     |   |     |
| Options      exercisable at January 31         | 485,370  |   | 492,979  |   | 659,372  |
| Options      available for grant at January 31 | 51,116   |   | 38,670   |   | 0        |
|                                           |     |   |     |   |     |
| 2005      Plan                                 | 2010     |   | 2009     |   | 2008     |
| Options      outstanding, beginning            | 579,983  |   | 412,450  |   | 224,206  |
| Grants                                         | 241,083  |   | 206,600  |   | 201,089  |
| Exercises                                      | -        |   | 19,333   |   | -        |
| Cancellations                                  | 6,000    |   | 19,734   |   | 12,845   |
| Options      outstanding, ending               | 815,066  |   | 579,983  |   | 412,450  |
|                                           |     |   |     |   |     |
| Options      price at January 31               | $8.5600  |   | $10.8975 |   | $10.8975 |
|                                           | to       |   | to       |   | to       |
|                                           | $11.7500 |   | $11.7500 |   | $11.7500 |
|                                           |     |   |     |   |     |
| Options      exercisable at January 31         | 383,778  |   | 179,499  |   | 70,014   |
| Options      available for grant at January 31 | 54,489   |   | 289,572  |   | 476,438  |
|                                           |     |   |     |   |     |
| 2008      Plan                                 | 2010     |   | 2009     |   | 2008     |
| Options      outstanding, beginning            | -        |   | -        |   | -        |
| Grants                                         | -        |   | -        |   | --       |
| Exercises                                      | -        |   | -        |   | -        |
| Cancellations                                  | -        |   | -        |   | -        |
| Options      outstanding, ending               | -        |   | -        |   | -        |
|                                           |     |   |     |   |     |
| Options      price at January 31               | -        |   | -        |   | -        |
|                                           |     |   |     |   |     |
|                                           |     |   |     |   |     |
|                                           |     |   |     |   |     |
| Options      exercisable at January 31         | -        |   | -        |   | -        |
| Options      available for grant at January 31 | 750,000  |   | 750,000  |   | 0        |

----

Index

|                                | 2010     |   | 2009     |   | 2008     |
|-------------------------------------|----------|--------|----------|--------|----------|
| Options      outstanding, beginning | $9.5374  |   | $8.5920  |   | $8.0169  |
| Grants                              | $9.6666  |   | $11.3450 |   | $11.7500 |
| Exercises                           | $5.2287  |   | $6.5282  |   | $7.9210  |
| Cancellations                       | $10.1973 |   | $9.4811  |   | $10.5059 |
| Options      outstanding, ending    | $9.6866  |   | $9.5374  |   | $8.5972  |

|                            |  2010 |   |   2009 |   | 2008     |
|---------------------------------|------------|--------|------------------|--------|----------|
| Interest      income            | $218,165   |   | $377,018         |   | $958,067 |
| Other      miscellaneous income | 42,012     |   | 52,056           |   | 10,648   |
|                            | $260,177   |   | $429,074         |   | $968,715 |

----

Index

----

Index

|                                                 | Years      ended January  31, |
|------------------------------------------------------|-----------------------------------------|
|                                                 | 2010                                    |   | 2009 |   | 2008 |
| Net      sales to unaffiliated customers             |                                    |   |   |   |   |
| Product      Recovery/Pollution Control Technologies | $35,899,630                             |   | $49,968,918 |   | $56,897,328 |
| Fluid      Handling Technologies                     | 24,527,998                              |   | 30,414,765 |   | 27,578,301 |
| Mefiag      Filtration Technologies                  | 9,526,908                               |   | 11,183,054 |   | 11,543,563 |
| Filtration/Purification      Technologies            | 10,177,957                              |   | 11,825,189 |   | 10,848,657 |
|                                                 | $80,132,493                             |   | $103,391,926 |   | $106,867,849 |
|                                                 |                                    |   |   |   |   |
| Income      (loss) from operations                   |                                    |   |   |   |   |
| Product      Recovery/Pollution Control Technologies | $1,924,005                              |   | $5,556,919 |   | $6,573,097 |
| Fluid      Handling Technologies                     | 4,325,853                               |   | 6,848,148 |   | 5,895,780 |
| Mefiag      Filtration Technologies                  | (34,886                                 | ) | 488,514 |   | 868,252 |
| Filtration/Purification      Technologies            | 297,583                                 |   | 1,163,498 |   | 746,422 |
| Gain      on sale of building                        | -                                       |   | - |   | 3,513,940 |
|                                                 | $6,512,555                              |   | $14,057,079 |   | $17,597,491 |
|                                                 |                                    |   |   |   |   |
| Depreciation      and amortization expense           |                                    |   |   |   |   |
| Product      Recovery/Pollution Control Technologies | $620,734                                |   | $538,867 |   | $511,350 |
| Fluid      Handling Technologies                     | 703,644                                 |   | 770,072 |   | 655,048 |
| Mefiag      Filtration Technologies                  | 331,065                                 |   | 365,025 |   | 324,917 |
| Filtration/Purification      Technologies            | 276,069                                 |   | 250,647 |   | 247,310 |
|                                                 | $1,931,512                              |   | $1,924,611 |   | $1,738,625 |
|                                                 |                                    |   |   |   |   |
| Capital      expenditures                            |                                    |   |   |   |   |
| Product      Recovery/Pollution Control Technologies | $312,221                                |   | $551,789 |   | $3,543,346 |
| Fluid      Handling Technologies                     | 291,452                                 |   | 431,402 |   | 1,171,855 |
| Mefiag      Filtration Technologies                  | 29,740                                  |   | 213,985 |   | 90,271 |
| Filtration/Purification      Technologies            | 59,278                                  |   | 128,160 |   | 378,871 |
|                                                 | 692,691                                 |   | 1,325,336 |   | 5,184,343 |
| Corporate                                            | 1,441,116                               |   | 255,192 |   | 272,075 |
|                                                 | $2,133,807                              |   | $1,580,528 |   | $5,456,418 |
|                                                 |                                    |   |   |   |   |
| Identifiable      assets at January 31               |                                    |   |   |   |   |
| Product      Recovery/Pollution Control Technologies | $34,466,168                             |   | $39,623,284 |   | $40,509,227 |
| Fluid      Handling Technologies                     | 18,068,428                              |   | 22,056,812 |   | 22,401,768 |
| Mefiag      Filtration Technologies                  | 12,257,281                              |   | 11,410,677 |   | 12,810,694 |
| Filtration/Purification      Technologies            | 8,257,837                               |   | 9,369,905 |   | 8,877,725 |
|                                                 | 73,049,714                              |   | 82,460,678 |   | 84,599,414 |
| Corporate                                            | 31,558,645                              |   | 22,291,626 |   | 24,811,489 |
|                                                 | $104,608,359                            |   | $104,752,304 |   | $109,410,903 |

----

Index

|                                                 | 2010         |   | 2009         |   | 2008         |
|------------------------------------------------------|--------------|--------|--------------|--------|--------------|
| Net      sales:                                      |         |   |         |   |         |
| United      States                                   | $60,499,608  |   | $76,866,031  |   | $76,659,806  |
| Foreign                                              | 19,632,885   |   | 26,525,895   |   | 30,208,043   |
|                                                 | $80,132,493  |   | $103,391,926 |   | $106,867,849 |
|                                                 |         |   |         |   |         |
| Foreign      Sales by Segment:                       |         |   |         |   |         |
| Product      Recovery/Pollution Control Technologies | $7,017,041   |   | $10,565,955  |   | $14,559,153  |
| Fluid      Handling Technologies                     | 5,081,925    |   | 7,320,016    |   | 6,669,921    |
| Mefiag      Filtration Technologies                  | 7,444,774    |   | 8,397,998    |   | 8,773,134    |
| Filtration/Purification      Technologies            | 89,145       |   | 241,926      |   | 205,835      |
|                                                 | $19,632,885  |   | $26,525,895  |   | $30,208,043  |
|                                                 |         |   |         |   |         |
| Income      from operations:                         |         |   |         |   |         |
| United      States                                   | $4,991,481   |   | $10,712,796  |   | $13,518,133  |
| Foreign                                              | 1,521,074    |   | 3,344,283    |   | 4,079,358    |
|                                                 | $6,512,555   |   | $14,057,079  |   | $17,597,491  |
|                                                 |         |   |         |   |         |
| Total      assets:                                   |         |   |         |   |         |
| United      States                                   | $94,035,051  |   | $95,223,147  |   | $98,104,273  |
| Foreign                                              | 10,573,308   |   | 9,529,157    |   | 11,306,630   |
|                                                 | $104,608,359 |   | $104,752,304 |   | $109,410,903 |

----

Index

----

Index

QUARTERLY FINANCIAL DATA (Unaudited)

|                |           |   |              |   |            |   | Earnings        | Earnings        |
|---------------------|----------------|--------|-------------------|--------|-----------------|--------|-----------------|-----------------|
|                |           |   |              |   |            |   | Per      Share, | Per      Share, |
| 2010                | Net      Sales |   | Gross      Profit |   | Net      Income |   | Basic           | Diluted         |
| First      Quarter  | $19,641,008    |   | $7,012,968        |   | $952,449        |   |            | $.07            |   |   | $.07 |   |
| Second      Quarter | 20,885,583     |   | 7,105,953         |   | 1,182,868       |   |            | .08             |   |   | .08 |   |
| Third      Quarter  | 19,807,781     |   | 6,676,537         |   | 1,024,830       |   |            | .07             |   |   | .07 |   |
| Fourth      Quarter | 19,798,121     |   | 6,581,094         |   | 1,279,664       |   |            | .09             |   |   | .09 |   |
|                |           |   |              |   |            |   |            |            |   |   |   |   |
|                |           |   |              |   |            |   | Earnings        | Earnings        |
|                |           |   |              |   |            |   | Per      Share, | Per      Share, |
| 2009                | Net      Sales |   | Gross      Profit |   | Net      Income |   | Basic           | Diluted         |
| First      Quarter  | $22,656,474    |   | $7,592,224        |   | $1,925,645      |   |            | $.13            |   |   | $.13 |   |
| Second      Quarter | 28,145,718     |   | 9,633,048         |   | 2,702,961       |   |            | .18             |   |   | .18 |   |
| Third      Quarter  | 27,979,483     |   | 10,245,087        |   | 3,011,366       |   |            | .20             |   |   | .20 |   |
| Fourth      Quarter | 24,610,251     |   | 8,630,637         |   | 2,221,093       |   |            | .15             |   |   | .15 |   |

Item 9.  Changes in and Disagreements withAccountants on Accounting and Financial Disclosure:

Item 9A.  Controls andProcedures:

Item 9B.  OtherInformation:

----

Index

PART III

Item 10.  Directors, Executive Officers andCorporate Governance:

Item 11.  ExecutiveCompensation:

Item 12.  Security Ownership of CertainBeneficial Owners and Management and Related ShareholderMatters:

Item 13.  Certain Relationships and RelatedTransactions, and Director Independence:

Item 14.  Principal Accountant Fees andServices:

----

Index

PART IV

Item 15.  Exhibits and Financial StatementSchedules:

| (a)    | Exhibits      and Financial Statements/Schedules: |
|--------|---------------------------------------------------|
|   |                                              |   |
|   | (1)                                               | Financial      Statements: |
|   |                                              |   |   |
|   |                                              | See      Index to Consolidated Financial Statements and Supplementary Data that      appears on page 29 of this report. |
|   |                                              |   |
|   | (2)                                               | Financial      Statement Schedule – See “Schedule II – Valuation and Qualifying Accounts”      below |

| Fiscal      Year End  |   | Balance      at Beginning      of Year | Additions      Charged to      Costsand      Expenses | Deductions(1) |   | Balance      at End      of Year |
|-----------------------|--------|----------------------------------------|-------------------------------------------------------|---------------|--------|----------------------------------|
| January      31, 2008 |   | $132,783                               |                                                  | $76,191       |   | ($56,839                         | ) |   | $152,135 |   |
| January      31, 2009 |   | 152,135                                |                                                  | 69,136        |   | (54,441                          | ) |   | 166,830 |   |
| January      31, 2010 |   | 166,830                                |                                                  | 157,653       |   | (120,464                         | ) |   | 204,019 |   |

|   | (3) | Exhibits,      including those incorporated byreference: |
|--------|-----|----------------------------------------------------------|

| Exhibit      No. | Description |
|------------------|-------------|
|             |        |   |
|             | (2)(c)      | Agreement      and Plan of Merger dated July 31, 2003 by and between Met-Pro Corporation,      a Delaware corporation, and Met-Pro Pennsylvania, Inc., a Pennsylvania      corporation, incorporated by reference to the Company’s Current Report on      Form 8-K filed on August 6, 2003. |
|             |        |   |
|             | (3)(f)      | Articles      of Incorporation of Met-Pro Corporation, a Pennsylvania corporation      formerly known as Met-Pro Pennsylvania, Inc., incorporated by reference to      the Company’s Current Report of Form 8-K filed on August 6,      2003. |
|             |        |   |
|             | (3)(g)      | By-Laws      of Met-Pro Corporation, a Pennsylvania corporation formerly known as      Met-Pro Pennsylvania, Inc., incorporated by reference to the Company’s      Current Report on Form 8-K filed on August 6, 2003. |
|             |        |   |
|             | (4)         | Shareholders’      Rights Plan, incorporated by reference to the Company’s Current Report on      Form 8-K filed on January 6, 2000. |
|             |        |   |
|             | (4)(a)      | Amendment      No. 1 to Shareholders’ Rights Plan, incorporated by reference to the      Company’s Current Report on Form 8-K filed on December 17,      2009. |
|             |        |   |
|             | (10)(b)     | The      1997 Stock Option Plan, incorporated by reference to the Company’s      Registration Statement on Form S-8 filed January 16,  1998.* |
|             |        |   |
|             | (10)(d)     | Amendment      No. 1 to the 1997 Stock Option Plan, incorporated by reference to the      Company’s Annual Report on Form 10-K filed on May 4,  2001.* |
|             |        |   |
|             | (10)(f)     | Key      Employee Severance Agreement between Met-Pro Corporation and Gary J.      Morgan, incorporated by reference to the Company’s Annual Report on Form      10-K filed on May 4, 2001.* |

----

Index

| Exhibit      No. | Description |
|------------------|-------------|
|             |        |   |
|             | (10)(g)     | Key      Employee Severance Agreement between Met-Pro Corporation and Raymond J. De      Hont, incorporated by reference to the  Company’s Annual Report      on Form 10-K filed on May 4, 2001.* |
|             |        |   |
|             | (10)(i)     | Amendment      to Key Employee Severance Agreement between Met-Pro Corporation and Gary      J. Morgan, incorporated by reference to the Company’s Annual Report on      Form 10-K filed on May 4, 2001.* |
|             |        |   |
|             | (10)(j)     | The      Company’s Director’s Retirement Plan, incorporated by reference to the      Company’s Annual Report on Form 10-K filed on May 4,  2001.* |
|             |        |   |
|             | (10)(k)     | Amendment      No. 1 to the Company’s Director’s Retirement Plan, incorporated by      reference to the Company’s Annual Report on Form 10-K filed on May 4,      2001.* |
|             |        |   |
|             | (10)(l)     | Amendment      No. 2 to the Company’s Director’s Retirement Plan, incorporated by      reference to the Company’s Annual Report on Form 10-K filed on May 4,      2001.* |
|             |        |   |
|             | (10)(m)     | Restoration      Plan, effective February 1, 2000, incorporated by reference to the      Company’s Annual Report on Form 10-K filed on May 4,  2001.* |

|   |    |                                                                                                                                                                                                                              |
|--------|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | (10)(n) | Amendment      No. 1 to the Company’s Restoration Plan, incorporated by reference to the      Company’s Annual Report on Form 10-K filed on May 4,  2001.*                                                            |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(o) | Additional      1% Supplemental Executive Retirement Plan, effective February 1, 2000,      incorporated by reference to the Company’s Annual Report on Form 10-K      filed on May 4, 2001.*                               |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(p) | The      2001 Equity Incentive Plan, incorporated by reference to the Company’s      Registration Statement on Form S-8 filed August 22,  2001.*                                                                            |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(q) | Year      2000 Employee Stock Purchase Plan, incorporated by reference to the      Company’s Registration Statement on Form S-8 filed on June 13,      2000.*                                                               |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(r) | Salaried      Pension Plan Amended and Restated effective September 1, 2000,      incorporated by reference to the Company’s Annual Report on Form 10-K      filed on April 28, 2003.*                                      |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(s) | First      Amendment to the Company’s Salaried Pension Plan dated August 15, 2002,      incorporated by reference to the Company’s Annual Report on Form 10-K      filed on April 28, 2003.*                          |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(t) | Second      Amendment to the Company’s Salaried Pension Plan dated October 23, 2002,      incorporated by reference to the Company’s Annual Report on Form 10-K      filed on April 28, 2003.*                        |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(u) | Amendment      No. 3 to the Company’s Directors’ Retirement Plan dated as of February 24,      2003, incorporated by reference to the Company’s Annual Report on Form      10-K filed on April 28, 2003.*       |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(v) | Amendment      No. 1 to the Company’s Additional 1% Supplemental Executive Plan dated as      of March 21, 2003, incorporated by reference to the Company’s Annual      Report on Form 10-K filed on April 28, 2003.* |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(w) | Directors      Retirement Plan Trust dated as of February 11, 2000, incorporated by      reference to the Company’s Annual Report on Form 10-K filed on April 28,      2003.*                                               |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(x) | Amendment      No. 1 to the Company’s Directors’ Retirement Plan Trust dated as of      February 24, 2003, incorporated by reference to the Company’s Annual      Report on Form 10-K filed on April 28, 2003.* |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(y) | Amendment      No. 2 to the Company’s Directors’ Retirement Plan Trust dated as of      February 24, 2003, incorporated by reference to the Company’s Annual      Report on Form 10-K filed on April 28, 2003.* |
|   |    |                                                                                                                                                                                                                              |
|   | (10)(z) | Restoration      and Supplemental Executive Retirement Plan Trust Agreement dated as of      February 11, 2000, incorporated by reference to the Company’s Annual      Report on Form 10-K filed on April 28, 2003.*        |
|   |    |                                                                                                                                                                                                                              |

----

Index

| Exhibit      No. | Description    |
|------------------|----------------|
|             |           |   |
|             | (10)(aa)       | Amendment      No. 1 to the Company’s Restoration and Supplemental Executive Retirement      Plan Trust Agreement dated as of February 24, 2003, incorporated by      reference to the Company’s Annual Report on Form 10-K filed on April 28,      2003.* |
|             |           |   |
|             | (10)(ab)       | The      2005 Equity Incentive Plan, incorporated by reference to the Company’s      Registration Statement on Form S-8 filed June 9, 2005.* |
|             |           |   |
|             | (10)(ac)       | Third      Amendment to the Company’s Salaried Pension Plan dated as of August 31,      2005, incorporated by reference to the Company’s Annual Report on Form      10-K filed on April 13, 2007. * |
|             |           |   |
|             | (10)(ad)       | Fourth      Amendment to the Company’s Salaried Pension Plan dated as of April 5,      2006, incorporated by reference to the Company’s Annual Report on Form      10-K filed on April 13, 2007. * |
|             |           |   |
|             | (10)(ae)       | Fifth      Amendment to the Company’s Salaried Pension Plan dated as of October 18,      2006, incorporated by reference to the Company’s Annual Report on Form      10-K filed on April 13, 2007. * |
|             |           |   |
|             | (10)(af)       | Standard      form for the Company’s Non-Employee Director Stock Option Agreement dated      as of December 10, 2007. * |
|             |           |   |
|             | (10)(ag)       | Standard      form for the Company’s Incentive Stock Option Agreement dated as of      December 10, 2007. * |
|             |           |   |
|             | (10)(ah)       | Non-Qualified      Defined Contribution Supplemental Executive Retirement Plan Agreement      dated as of May 1, 2008. * |
|             |           |   |
|             | (10)(ai)       | Amended      and Restated Key Severance Agreement for the Chief Executive Officer dated      as of April 3, 2008. * |
|             |           |   |
|             | (10)(aj)       | Amended      and Restated Key Severance Agreement for the Chief Financial Officer dated      as of April 3, 2008. * |
|             |           |   |
|             | (10)(ak)       | The      2008 Equity Incentive Plan, incorporated by reference to the Company’s      Registration Statement on Form S-8 filed on December 8,    2008.* |
|             |           |   |
|             | (10)(al)       | Second      Amended and Restated Key Employee Severance Pay Agreement for the Chief      Executive Officer dated as of December 3, 2008, incorporated by reference      to the Company’s Current Report on 8-K filed on December 5, 2008.      * |
|             |           |   |
|             | (10)(am)       | Second      Amended and Restated Key Employee Severance Pay Agreement for the Chief      Financial Officer dated as of December 3, 2008, incorporated by reference      to the Company’s Current Report on 8-K filed on December 5, 2008.      * |
|             |           |   |
|             | (10)(an)  | Standard      Form for the Non-Employee Stock Option Agreement dated December 3, 2008,      incorporated by reference to the Company’s Current Report on Form 8-K      filed on January 11, 2010.      * |
|             |           |   |
|             | (10)(ao)  | Standard      Form for the Incentive Stock Option Agreement dated December 3, 2008,      incorporated by reference to the Company’s Current Report on Form 8-K      filed on January 11, 2010.      * |
|             |           |   |
|             | (10)(ap)       | Standard      Form for the Employee Non-Qualified Stock Option Agreement dated December      3, 2008, incorporated by reference to the Company’s Current Report filed      on Form 8-K filed on January 11, 2010.      * |
|             |           |   |
|             | (10)(aq)       | Standard      Form for the Non-Employee Stock Option Agreement dated December 11, 2009,      incorporated by reference to the Company’s Current Report filed on Form      8-K filed on January 11, 2010.      * |
|             |           |   |
|             | (10)(ar)       | Standard      Form for the Incentive Stock Option Agreement dated December 11, 2009,      incorporated by reference to the Company’s Current Report filed on Form      8-K filed on January 11, 2010.      * |
|             |           |   |
|             | (10)(as)       | Standard      Form for the Employee Non-Qualified Stock Option Agreement dated December      11, 2009, incorporated by reference to the Company’s Current Report filed      on Form 8-K filed on January 11, 2010.      * |

----

Index

| Exhibit      No. | Description |
|------------------|-------------|
|             |        |   |
|             | (10)(at)    | FYE      2010 Incentive Plan for Chief Executive Officer and Chief Financial      Officer, incorporated by reference to the Company’s Current Report filed      on Form 8-K filed on January 12, 2010.      * |
|             |        |   |
|             | (10)(au)    | FYE      2010 Incentive Plan for Executive Vice President, incorporated by      reference to the Company’s Current Report filed on Form 8-K filed on      January 12, 2010.      * |
|             |        |   |
|             | (10)(av)    | FYE      2010 Incentive Plan for Vice Presidents/General Managers, incorporated by      reference to the Company’s Current Report filed on Form 8-K filed on      January 12, 2010.      * |
|             |        |   |
|             | (10)(aw)    | Salaried      Pension Plan Amended and Restated effective September 1, 2007,      incorporated by reference to the Company’s Current Report filed on Form      8-K filed on January 15, 2010.      * |
|             |        |   |
|             | (10)(ax)    | First      (Corrective) Amendment to the Met-Pro Corporation Salaried Pension Plan,      incorporated by reference to the Company’s Current Report filed on Form      8-K filed on January 15, 2010.      * |
|             |        |   |
|             | (10)(ay)    | Second      (Qualification) Amendment to the Met-Pro Corporation Salaried Pension      Plan, incorporated by reference to the Company’s Current Report filed on      Form 8-K filed on January 15, 2010.      * |
|             |        |   |
|             | (10)(az)    | Met-Pro      Corporation Retirement Savings Plan effective January 1, 2007,      incorporated by reference to the Company’s Current Report filed on Form      8-K filed on January 19, 2010.      * |
|             |        |   |
|             | (10)(ba)    | First      (Qualification) Amendment to the Met-Pro Corporation Retirement Savings      Plan, incorporated by reference to the Company’s Current Report filed on      Form 8-K filed on January 19, 2010.      * |
|             |        |   |
|             | (10)(bb)    | Second      Amendment to the Met-Pro Corporation Retirement Savings Plan, incorporated      by reference to the Company’s Current Report filed on Form 8-K filed on      January 19, 2010.      * |
|             |        |   |
|             | (10)(bc)    | Third      (Good Faith) Amendment to the Met-Pro Corporation Retirement Savings Plan,      incorporated by reference to the Company’s Current Report filed on Form      8-K filed on January 19, 2010.      * |
|             |        |   |
|             | (10)(bd)    | Promissory      Line of Credit Note dated February 23, 1996, incorporated by reference to      the Company’s Current Report filed on Form 8-K filed on February 1,      2010.      * |
|             |        |   |
|             | (10)(be)    | Reaffirmation      of Line of Credit dated January 19, 2010, incorporated by reference to the      Company’s Current Report filed on Form 8-K filed on February 1, 2010.      * |
|             |        |   |
|             | (10)(bf)    | Third      (Good Faith) Amendment to the Met-Pro Corporation Salaried Pension Plan      effective January 29, 2010, incorporated by reference to the Company’s      Current Report filed on Form 8-K filed on February 1, 2010.      * |
|             |        |   |
|             | (10)(bg)    | Financing      Agreement dated December 30, 2005, incorporated by reference to the      Company’s Current Report filed on Form 8-K filed on March 12, 2010.      * |
|             |        |   |
|             | (10)(bh)    | Trade      Confirmation, incorporated by reference to the Company’s Current Report      filed on Form 8-K filed on March 12, 2010. * |
|             |        |   |
|             | (10)(bi)    | ISDA      Master Agreement, incorporated by reference to the Company’s Current      Report filed on Form 8-K filed on March 12, 2010. * |
|             |        |   |
|             | (10)(bj)    | ISDA      Schedule to the Master Agreement, incorporated by reference to the      Company’s Current Report filed on Form 8-K filed on March 12, 2010.      * |
|             |        |   |
|             | (10)(bk)    | Fortis      Bank General Credit Offer dated October 19, 2005, incorporated by      reference to the Company’s Current Report filed on Form 8-K filed on March      12, 2010. * |
|             |        |   |
|             | (10)(bl)    | Positive/Negative      Mortgage Statement dated October 19, 2005, incorporated by reference to      the Company’s Current Report filed on Form 8-K filed on March 12, 2010.      * |

----

Index

| Exhibit      No. | Description |
|------------------|-------------|
|             |        |   |
|             | (10)(bm)    | Fortis      Bank General Conditions, incorporated by reference to the Company’s      Current Report filed on Form 8-K filed on March 12, 2010.  * |
|             |        |   |
|             | (10)(bn)    | General      Credit Conditions of Fortis Bank (Nederland) N.V., incorporated by      reference to the Company’s Current Report filed on Form 8-K filed on March      12, 2010. * |
|             |        |   |
|             | (10)(bo)    | Interest      Assessment dated November 2, 2005, incorporated by reference to the      Company’s Current Report filed on Form 8-K filed on March 12, 2010.      * |
|             |        |   |
|             | (10)(bp)    | Supplement      to the General Credit Offer dated October 19, 2005, incorporated by      reference to the Company’s Current Report filed on Form 8-K filed on March      12, 2010. * |
|             |        |   |
|             | (10)(bq)    | Microsoft      Financing Master Agreement dated March 18, 2009, incorporated by reference      to the Company’s Current Report filed on Form 8-K filed on March 12, 2010.      * |
|             |        |   |
|             | (11)        | Statement      Re-computation of Per Share Earnings. See page 34 of Item    8. |
|             |        |   |
|             | (21)        | List      of Subsidiaries of Registrant as of January 31,  2010: |

| Corporate                        |   | Jurisdiction      of            |   | Name      under which Business               |
|----------------------------------|--------|---------------------------------|--------|----------------------------------------------|
| Name                             |   | Incorporation                   |   | is Conducted                                 |
|                             |   |                            |   |                                         |
| Mefiag      B.V.                 |   | The      Netherlands            |   | Mefiag      B.V., a wholly owned             |
|                             |   |                            |   | Subsidiary      of Met-Pro Corporation       |
|                             |   |                            |   |                                         |
| Met-Pro      Product             |   | Ontario,      Canada            |   | Met-Pro      Product Recovery/Pollution      |
| Recovery/Pollution      Control  |   |                            |   | Control      Technologies Inc.,              |
| Technologies      Inc.           |   |                            |   | a      wholly-owned subsidiary of            |
|                             |   |                            |   | Met-Pro      Corporation                     |
|                             |   |                            |   |                                         |
| Strobic      Air Corporation     |   | Delaware                        |   | Strobic      Air Corporation,                |
|                             |   |                            |   | a      wholly-owned subsidiary of            |
|                             |   |                            |   | Met-Pro      Corporation                     |
|                             |   |                            |   |                                         |
| MPC      Inc.                    |   | Delaware                        |   | MPC      Inc.,                               |
|                             |   |                            |   | a      wholly-owned subsidiary of            |
|                             |   |                            |   | Met-Pro      Corporation                     |
|                             |   |                            |   |                                         |
| Pristine      Water Solutions    |   | Delaware                        |   | Pristine      Water Solutions Inc.,          |
| Inc.                             |   |                            |   | a      wholly-owned subsidiary of            |
|                             |   |                            |   | Met-Pro      Corporation                     |
|                             |   |                            |   |                                         |
| Met-Pro      Industrial Services |   | Pennsylvania                    |   | Met-Pro      Industrial Services Inc.        |
| Inc.                             |   |                            |   | a      wholly-owned subsidiary of            |
|                             |   |                            |   | Met-Pro      Corporation                     |
|                             |   |                            |   |                                         |
| Mefiag      (Guangzhou) Filter   |   | People’s      Republic of |   | Mefiag      (Guangzhou) Filter Systems Ltd., |
| Systems      Ltd.                |   |     China   |   | a      wholly-owned subsidiary of Met-Pro    |
|                             |   |                            |   | (Hong      Kong) Company Limited             |
|                             |   |                            |   |                                         |
| Met-Pro      (Hong Kong)         |   | Hong      Kong                  |   | Met-Pro      (Hong Kong) Company             |
| Company Limited             |   |                            |   | Limited,      a wholly-owned subsidiary      |
|                             |   |                            |   | of      Met-Pro Corporation                  |

----

Index

| Exhibit    No. |  Description |
|----------------|-------------------|
|           |              |   |
|           | (23a)             | Independent Registered Public Accounting      Firm’s Consent ** |
|           |              |   |
|           | (23b)             | Consent of Independent Registered Public      Accounting Firm ** |
|           |              |   |
|           | (31.1)            | Certification of Chief Executive Officer      pursuant to Section 302 of the Sarbanes-Oxley Act of 2002      ** |
|           |              |   |
|           | (31.2)            | Certification of Chief Financial Officer      pursuant to Section 302 of the Sarbanes-Oxley Act of 2002      ** |
|           |              |   |
|           | (32.1)            | Certification of Chief Executive Officer      pursuant to 18 U.S.C. Section 1350, as Adopted pursuant to Section 906 of      the Sarbanes-Oxley Act of 2002 ** |
|           |              |   |
|           | (32.2)            | Certification of Chief Financial Officer      pursuant to 18 U.S.C. Section 1350, as Adopted pursuant to Section 906 of      the Sarbanes-Oxley Act of 2002** |

|   | (9)  | Voting      trust agreements.                                                       |
|--------|-----------|-------------------------------------------------------------------------------------|
|   | (12)      | Statements      re computation of ratios.                                           |
|   | (13)      | Annual      report to security holders.                                             |
|   | (14)      | Code      of ethics.                                                                |
|   | (16)      | Letter      re change in certifying accountant.                                     |
|   | (18)      | Letter      re change in accounting principles.                                     |
|   | (22)      | Published      report regarding matters submitted to vote of security      holders. |
|   | (24)      | Power      of attorney.                                                             |

----

Index

SIGNATURES

|           |   | MET-PRO      CORPORATION |
|----------------|--------|--------------------------|
|           |   |                     |   |
|           |   |                     |   |
| March 15, 2010 |   | By:                      | /s/ Raymond J. De Hont |
| Date           |   |                     | Raymond      J. De Hont |
|           |   |                     | Chairman,      Chief Executive |
|           |   |                     | Officer      and President |

| Signature                    | Title                               | Date                |
|------------------------------|-------------------------------------|---------------------|
|                         |                                |                |
| /s/ Raymond J. De Hont       | Chairman,                           | March      15, 2010 |
| Raymond      J. De Hont      | Chief      Executive Officer        |                |
|                         | and      President                  |                |
|                         |                                |                |
|                         |                                |                |
| /s/ Gary J. Morgan           | Senior      Vice President-Finance, | March      15, 2010 |
| Gary      J. Morgan          | Secretary,      Treasurer,          |                |
|                         | Chief      Financial Officer,       |                |
|                         | Chief      Accounting Officer       |                |
|                         | and      Director                   |                |
|                         |                                |                |
| /s/ George H. Glatfelter II  | Director                            | March      15, 2010 |
| George      H. Glatfelter II |                                |                |
|                         |                                |                |
| /s/ Michael J. Morris        | Director                            | March      15, 2010 |
| Michael      J. Morris       |                                |                |
|                         |                                |                |
| /s/ Judith A. Spires         | Director                            | March      15, 2010 |
| Judith      A. Spires        |                                |                |
|                         |                                |                |
| /s/ Stanley W. Silverman     | Director                            | March      15, 2010 |
| Stanley      W. Silverman    |                                |                |
|                         |                                |                |
| /s/ Robin L. Wiessmann       | Director                            | March      15, 2010 |
| Robin      L. Wiessmann      |                                |                |

----

Index