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Need a different depth?

Same size, deeper filter

Below is 14x25 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.

14x25x2 Shop this size 14x25x4 Built to order

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

  • 18x25x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    18x25x1 NaturalAire Microparticle MERV 10

    $260.99
    $260.99
    Case of 12 $21.75/filter
  • 14x30x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    14x30x1 NaturalAire Healthy Ultra MERV 13

    $234.99
    $234.99
    Case of 12 $19.58/filter
  • 14x18x1 NaturalAire Standard MERV 8 Filters (12 pack)
    AAF Flanders

    14x18x1 NaturalAire Standard MERV 8

    $248.99
    $248.99
    Case of 12 $20.75/filter
  • 14x18x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    14x18x1 NaturalAire Microparticle MERV 10

    $217.99
    $217.99
    Case of 12 $18.17/filter
  • 20x25x6 NaturalAire Choice Allergen MERV 8 82655.062025 (3 Filters)
    MERV 8Contact Support
    AAF Flanders

    20x25x6 NaturalAire Choice Allergen MERV 8

    $190.99
    $190.99
    Case of 3 $63.66/filter
  • 14x20x1 NaturalAire Microparticle MERV 10 85156.011420 (12 Filters)
    MERV 10
    AAF Flanders

    14x20x1 NaturalAire Microparticle MERV 10

    $178.99
    $178.99
    Case of 12 $14.92/filter
  • Naturalaire MERV 13 custom size air filters
    MERV 13
    AAF Flanders

    Custom Size NaturalAire Healthy Ultra MERV 13 Air Filter

    $248.99
    $248.99
  • 14x22x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8
    AAF Flanders

    14x22x1 NaturalAire Standard MERV 8

    $167.99
    $167.99
    Case of 12 $14.00/filter
  • 16x25x1 NaturalAire Odor Eliminator with Baking Soda MERV 8 air filter
    MERV 8
    AAF Flanders

    16x25x1 NaturalAire Odor Eliminator with Baking Soda MERV 8

    $62.99
    $62.99
    Case of 4 $15.75/filter
  • 14x25x1 Flanders Nested Glass EZ-Green Filter 10059.011425 (24 Filters)
    MERV 1-4
    AAF Flanders

    14x25x1 Flanders Nested Glass EZ-Green Filter

    $114.99
    $114.99
    Case of 24 $4.79/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
  • 14x24x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    14x24x1 NaturalAire Healthy Ultra MERV 13

    $248.99
    $248.99
    Case of 12 $20.75/filter
  • 14x20x1 NaturalAire Standard MERV 8 84858.011420 (12 Filters)
    MERV 8
    AAF Flanders

    14x20x1 NaturalAire Standard MERV 8

    $96.99
    $96.99
    Case of 12 $8.08/filter
  • 14x20x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    14x20x1 NaturalAire Healthy Ultra MERV 13

    $230.99
    $230.99
    Case of 12 $19.25/filter
  • 14x14x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    14x14x1 NaturalAire Microparticle MERV 10

    $74.99
    $74.99
    Case of 6 $12.50/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
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