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Need a different depth?

Same size, deeper filter

Below is 20x36 at 1 naturalaire″. 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.

20x36x2 Built to order 20x36x4 Built to order

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

  • 24x36x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    24x36x1 NaturalAire Microparticle MERV 10

    $244.99
    $244.99
    Case of 6 $40.83/filter
  • 18x36x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    18x36x1 NaturalAire Microparticle MERV 10

    $129.99
    $129.99
    Case of 6 $21.67/filter
  • 16x36x1 NaturalAire Standard MERV 8 84858.011636 (12 Filters)
    MERV 8
    AAF Flanders

    16x36x1 NaturalAire Standard MERV 8

    $176.99
    $176.99
    Case of 12 $14.75/filter
  • 20x24x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    20x24x1 NaturalAire Microparticle MERV 10

    $109.99
    $109.99
    Case of 6 $18.33/filter
  • 20x36x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.012036 (12 Filters)
    MERV 1-4
    AAF Flanders

    20x36x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $146.99
    $146.99
    Case of 12 $12.25/filter
  • 18x36x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    AAF Flanders

    18x36x1 NaturalAire Healthy Ultra MERV 13

    $351.99
    $351.99
    Case of 12 $29.33/filter
  • 24x36x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    AAF Flanders

    24x36x1 NaturalAire Healthy Ultra MERV 13

    $409.99
    $409.99
    Case of 12 $34.17/filter
  • 24x36x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    24x36x1 NaturalAire Microparticle MERV 10

    $304.99
    $304.99
    Case of 12 $25.42/filter
  • 10x36x1 NaturalAire Standard MERV 8 84858.011036 (12 Filters)
    MERV 8
    AAF Flanders

    10x36x1 NaturalAire Standard MERV 8

    $150.99
    $150.99
    Case of 12 $12.58/filter
  • 20x22-1/4x1 NaturalAire Standard MERV 8 84858.01202225 (12 Filters)
    MERV 8
    AAF Flanders

    20x22-1/4x1 NaturalAire Standard MERV 8

    $173.99
    $173.99
    Case of 12 $14.50/filter
  • 12x36x1 NaturalAire Standard MERV 8 84858.011320 (12 Filters)
    MERV 8
    AAF Flanders

    12x36x1 NaturalAire Standard MERV 8

    $147.99
    $147.99
    Case of 12 $12.33/filter
  • 18x36x1 NaturalAire Standard MERV 8 84858.011836 (12 Filters)
    MERV 8
    AAF Flanders

    18x36x1 NaturalAire Standard MERV 8

    $193.99
    $193.99
    Case of 12 $16.17/filter
  • Koch Disposable Fiberglass Panel Filter
    MERV 1-4
    Koch

    Disposable Fiberglass Panel Filter

    From $59.99
    From $59.99
  • PrimeShield MAX Airflow MERV 1-4 Fiberglass Panel Basic Air Filters (12 Pack)
    MERV 1-4
    RTF

    PrimeShield MAX Airflow MERV 1-4 Fiberglass Panel Basic Air Filters

    From $57.99
    From $57.99
    Case of 12 $4.83/filter
  • Koch Disposable Polyester Panel Filter
    MERV 1-4
    Koch

    Disposable Polyester Panel Filter

    From $69.99
    From $69.99
  • Filtrete™ Allergen Defense Filter (MPR 1000) — Front view
    MPR 1000
    Filtrete

    Allergen Defense Filter

    From $14.99
    From $14.99
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