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Need a different depth?

Same size, deeper filter

Below is 20x20 at 1″. A thicker filter holds more before it loads up, so it lasts longer between changes and puts less strain on the blower — we carry the same width and height in the depths below.

20x20x2 Shop this size 20x20x4 Shop this size

Ordering for a building? Ask for volume pricing or call 1-866-469-8556.

  • 20x20x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.012020 (12 Filters)
    MERV 1-4
    AAF Flanders

    20x20x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $61.99
    $61.99
    Case of 12 $5.17/filter
  • 20x20x1 NaturalAire Standard MERV 8 84858.012020 (12 Filters)
    MERV 8
    AAF Flanders

    20x20x1 NaturalAire Standard MERV 8

    $104.99
    $104.99
    Case of 12 $8.75/filter
  • 20x20x1 Flanders Nested Glass EZ-Green Filter 10059.012020 (24 Filters)
    MERV 1-4
    AAF Flanders

    20x20x1 Flanders Nested Glass EZ-Green Filter

    $124.99
    $124.99
    Case of 24 $5.21/filter
  • 20x20x1 AAF Flanders PREpleat LPD MERV 10 Standard Capacity 80055.012020 (12 Filters)
    MERV 10
    AAF Flanders

    20x20x1 PREpleat LPD MERV 10 Standard Capacity

    $104.99
    $104.99
    Case of 12 $8.75/filter
  • 20x20x1 Koch Disposable Fiberglass Panel 274-200-200 (12 Filters)
    MERV 1-4
    Koch

    20x20x1 Disposable Fiberglass Panel Filter

    $60.99
    $60.99
    Case of 12 $5.08/filter
  • 20x20x1 NaturalAire Microparticle MERV 10 85256.012020 (6 Filters)
    MERV 10
    AAF Flanders

    20x20x1 NaturalAire Microparticle MERV 10

    $70.99
    $70.99
    Case of 6 $11.83/filter
  • 20x20x1 Exact Filters Fiberglass MERV 1-4 (12 pack)
    MERV 1-4
    Exact Filters

    20x20x1 Fiberglass MERV 1-4

    $183.99
    $183.99
    Case of 12 $15.33/filter
  • 20x20x1 Exact Filters Pleated MERV 11 (12 pack)
    MERV 11
    Exact Filters

    20x20x1 Pleated MERV 11

    $258.99
    $258.99
    Case of 12 $21.58/filter
  • 20x20x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    20x20x1 Pleated MERV 13

    $279.99
    $279.99
    Case of 12 $23.33/filter
  • 20x20x1 NaturalAire Odor Eliminator with Baking Soda MERV 8 air filter
    MERV 8
    AAF Flanders

    20x20x1 NaturalAire Odor Eliminator with Baking Soda MERV 8

    $56.99
    $56.99
    Case of 4 $14.25/filter
  • 20x20x1 Exact Filters Pleated MERV 8 (12 pack)
    MERV 8
    Exact Filters

    20x20x1 Pleated MERV 8

    $211.99
    $211.99
    Case of 12 $17.67/filter
  • PerfectPleat HC M8 Filter
    MERV 8
    AAF Flanders

    20x20x1 PerfectPleat MERV 8 High Capacity

    $97.99
    $97.99
    Case of 12 $8.17/filter
  • 20x20x1 Koch Multi-Pleat XL10 MERV 10 High Capacity 102-390-008 (12 Filters)
    MERV 10 HC
    Koch

    20x20x1 Multi-Pleat XL10 MERV 10 High Capacity

    $113.76
    $113.76
    Case of 12 $9.48/filter
  • 20x20x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13Up to $40.31 off
    AAF Flanders

    WAREHOUSE DEAL 20x20x1 NaturalAire Healthy Ultra MERV 13

    Only 1 left
    $142.99
    $142.99 $183.30
    Case of 10 $14.30/filter
  • Flanders AAF Basic Filter 20x20x1 EZ Flow II Filters 10055.012020 (12 Filters)
    MERV 1-4Up to $9.99 off
    AAF Flanders

    WAREHOUSE DEAL 20x20x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    Only 1 left
    $50.00
    $50.00 $59.99
    Case of 12 $4.17/filter
  • 20x20x1 Koch Multi-Pleat XL10 MERV 10 102-380-008 (12 Filters)
    MERV 10
    Koch

    20x20x1 Multi-Pleat XL10 MERV 10

    $108.36
    $108.36
    Case of 12 $9.03/filter
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