Search

Need a different depth?

Same size, deeper filter

Below is 14x20 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.

14x20x2 Shop this size 14x20x4 Built to order

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

  • 14x25x1 NaturalAire Standard MERV 8 84858.011425 (12 Filters)
    MERV 8
    AAF Flanders

    14x25x1 NaturalAire Standard MERV 8

    $105.99
    $105.99
    Case of 12 $8.83/filter
  • 20x30x1 NaturalAire Microparticle MERV 10 85256.012030 (6 Filters)
    MERV 10
    AAF Flanders

    20x30x1 NaturalAire Microparticle MERV 10

    $94.99
    $94.99
    Case of 6 $15.83/filter
  • 16x20x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    16x20x1 NaturalAire Healthy Ultra MERV 13

    $224.99
    $224.99
    Case of 12 $18.75/filter
  • 10x20x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    10x20x1 NaturalAire Microparticle MERV 10

    $71.99
    $71.99
    Case of 6 $12.00/filter
  • 16x20x1 NaturalAire Microparticle MERV 10 85156.011620 (12 Filters)
    MERV 10
    AAF Flanders

    16x20x1 NaturalAire Microparticle MERV 10

    $116.99
    $116.99
    Case of 12 $9.75/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
  • 16x20x4-1/2 NaturalAire Choice Allergen MERV 8 82655.0451620 (2 Filters)
    MERV 8
    AAF Flanders

    16x20x4-1/2 NaturalAire Choice Allergen MERV 8

    $164.99
    $164.99
    Case of 2 $82.50/filter
  • 20x30x1 NaturalAire Microparticle MERV 10 85156.012030 (12 Filters)
    MERV 10
    AAF Flanders

    20x30x1 NaturalAire Microparticle MERV 10

    $171.99
    $171.99
    Case of 12 $14.33/filter
  • 15x20x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    15x20x1 NaturalAire Microparticle MERV 10

    $167.99
    $167.99
    Case of 12 $14.00/filter
  • WAREHOUSE DEAL 16x20x5 NaturalAire Choice Allergen MERV 8 (2 Filters)
    MERV 8Up to $55.11 off
    AAF Flanders

    WAREHOUSE DEAL 16x20x5 NaturalAire Choice Allergen MERV 8

    Only 1 left
    $149.88
    $149.88 $204.99
    Case of 2 $74.94/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
  • 12x20x1 NaturalAire Standard MERV 8 84858.011220 (12 Filters)
    MERV 8
    AAF Flanders

    12x20x1 NaturalAire Standard MERV 8

    $95.99
    $95.99
    Case of 12 $8.00/filter
  • 12x20x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    AAF Flanders

    12x20x1 NaturalAire Healthy Ultra MERV 13

    $268.99
    $268.99
    Case of 12 $22.42/filter
  • 20x22x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    20x22x1 NaturalAire Microparticle MERV 10

    $261.99
    $261.99
    Case of 12 $21.83/filter
  • 15x20x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    15x20x1 NaturalAire Microparticle MERV 10

    $89.99
    $89.99
    Case of 6 $15.00/filter
  • 15x20x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    Up to $10.39 off
    AAF Flanders

    WAREHOUSE DEAL 15x20x1 NaturalAire Healthy Ultra MERV 13

    Only 1 left
    $149.99
    $149.99 $160.38
    Case of 11 $13.64/filter
Show more