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Need a different depth?

Same size, deeper filter

Below is 8x24 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.

8x24x2 Built to order 8x24x4 Built to order

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

  • 18x24x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10Up to $18.11 off
    AAF Flanders

    WAREHOUSE DEAL 18x24x1 NaturalAire Microparticle MERV 10

    $59.88
    $59.88 $77.99
    Case of 6 $9.98/filter
  • NaturalAire Microparticle MERV 10 (12 Filters)
    MERV 10
    AAF Flanders

    NaturalAire Microparticle MERV 10

    From $137.99
    From $137.99
    Case of 12 $11.50/filter
  • 20x24x1 NaturalAire Odor Eliminator with Baking Soda MERV 8 air filter
    MERV 8
    AAF Flanders

    20x24x1 NaturalAire Odor Eliminator with Baking Soda MERV 8

    $102.99
    $102.99
    Case of 4 $25.75/filter
  • 20x30x1 NaturalAire Standard MERV 8 84858.012030 (12 Filters)
    MERV 8
    AAF Flanders

    20x30x1 NaturalAire Standard MERV 8

    $155.99
    $155.99
    Case of 12 $13.00/filter
  • 14x24x1 NaturalAire Microparticle MERV 10 85156.011424 (12 Filters)
    MERV 10
    AAF Flanders

    14x24x1 NaturalAire Microparticle MERV 10

    $187.99
    $187.99
    Case of 12 $15.67/filter
  • 18x20x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8
    AAF Flanders

    18x20x1 NaturalAire Standard MERV 8

    $105.99
    $105.99
    Case of 12 $8.83/filter
  • 17-1/2x29-1/2x1 NaturalAire Standard MERV 8 84858.01175295 (12 Filters)
    MERV 8
    AAF Flanders

    17-1/2x29-1/2x1 NaturalAire Standard MERV 8

    $170.99
    $170.99
    Case of 12 $14.25/filter
  • 12x24x1 NaturalAire Microparticle MERV 10 85256.011224 (6 Filters)
    MERV 10
    AAF Flanders

    12x24x1 NaturalAire Microparticle MERV 10

    $87.99
    $87.99
    Case of 6 $14.67/filter
  • 16x25x5 NaturalAire Choice Allergen MERV 8 82655.051625 (2 Filters)
    MERV 8
    AAF Flanders

    16x25x5 NaturalAire Choice Allergen MERV 8

    $194.99
    $194.99
    Case of 2 $97.50/filter
  • 08x14x1 NaturalAire Standard MERV 8 Filters (12 pack)
    AAF Flanders

    8x14x1 NaturalAire Standard MERV 8

    $219.99
    $219.99
    Case of 12 $18.33/filter
  • 18x30x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8
    AAF Flanders

    18x30x1 NaturalAire Standard MERV 8

    $154.99
    $154.99
    Case of 12 $12.92/filter
  • 16x24x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    16x24x1 NaturalAire Microparticle MERV 10

    $175.99
    $175.99
    Case of 12 $14.67/filter
  • Flanders AAF Pleated Filter Naturalaire Standard MERV 8 Filters (12 pack)
    MERV 8
    AAF Flanders

    NaturalAire Standard MERV 8

    $81.99
    $81.99
    Case of 6 $13.67/filter
  • 12x24x1 NaturalAire Odor Eliminator with Baking Soda MERV 8 air filter
    MERV 8
    AAF Flanders

    12x24x1 NaturalAire Odor Eliminator with Baking Soda MERV 8

    $62.99
    $62.99
    Case of 4 $15.75/filter
  • 16x20x5 NaturalAire Choice Allergen MERV 8 82655.051620 (2 Filters)
    MERV 8
    AAF Flanders

    16x20x5 NaturalAire Choice Allergen MERV 8

    $204.99
    $204.99
    Case of 2 $102.50/filter
  • 24x24x1 NaturalAire Microparticle MERV 10 85156.012424 (12 Filters)
    MERV 10
    AAF Flanders

    24x24x1 NaturalAire Microparticle MERV 10

    $182.99
    $182.99
    Case of 12 $15.25/filter
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