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Need a different depth?

Same size, deeper filter

Below is 12x36 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.

12x36x2 Built to order 12x36x4 Built to order

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

  • 14x36x1 NaturalAire Standard MERV 8 84858.011436 (12 Filters)
    MERV 8
    AAF Flanders

    14x36x1 NaturalAire Standard MERV 8

    $167.99
    $167.99
    Case of 12 $14.00/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
  • 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
  • 20x36x1 NaturalAire Standard MERV 8 84858.012036 (12 Filters)
    MERV 8
    AAF Flanders

    20x36x1 NaturalAire Standard MERV 8

    $186.99
    $186.99
    Case of 12 $15.58/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
  • 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
  • 20x36x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    20x36x1 NaturalAire Microparticle MERV 10

    $160.99
    $160.99
    Case of 6 $26.83/filter
  • 12x36x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011236 (12 Filters)
    MERV 1-4
    AAF Flanders

    12x36x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $126.99
    $126.99
    Case of 12 $10.58/filter
  • 17-5/8x35-5/8x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8
    AAF Flanders

    17-5/8x35-5/8x1 NaturalAire Standard MERV 8

    $202.99
    $202.99
    Case of 12 $16.92/filter
  • 12x24x1 NaturalAire Healthy Ultra MERV 13 95003.011224 (12 Filters)
    MERV 13
    AAF Flanders

    12x24x1 NaturalAire Healthy Ultra MERV 13

    $174.99
    $174.99
    Case of 12 $14.58/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 Reduction Filter (MPR 1500) — Front view
    MPR 1500
    Filtrete

    Allergen Reduction Filter

    $21.99
    $21.99
  • 12x36x1 Koch Disposable Fiberglass Panel 274-120-360 (12 Filters)
    MERV 1-4
    Koch

    12x36x1 Disposable Fiberglass Panel Filter

    $93.99
    $93.99
    Case of 12 $7.83/filter
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