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Need a different depth?

Same size, deeper filter

Below is 12x24 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.

12x24x2 Shop this size 12x24x4 Shop this size

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

  • 21-1/2x23-1/2x1 NaturalAire Standard MERV 8 84858.01215235 (12 Filters)
    MERV 8
    AAF Flanders

    21-1/2x23-1/2x1 NaturalAire Standard MERV 8

    $183.99
    $183.99
    Case of 12 $15.33/filter
  • 08x24x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    8x24x1 NaturalAire Microparticle MERV 10

    $228.99
    $228.99
    Case of 12 $19.08/filter
  • 10x24x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    10x24x1 NaturalAire Healthy Ultra MERV 13

    $226.99
    $226.99
    Case of 12 $18.92/filter
  • 20x24x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    20x24x1 NaturalAire Healthy Ultra MERV 13

    $204.99
    $204.99
    Case of 12 $17.08/filter
  • 18x24x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    18x24x1 NaturalAire Healthy Ultra MERV 13

    $243.99
    $243.99
    Case of 12 $20.33/filter
  • 12x12x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    12x12x1 NaturalAire Healthy Ultra MERV 13

    $233.99
    $233.99
    Case of 12 $19.50/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
  • 14x24x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8Up to $17.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 14x24x1 NaturalAire Standard MERV 8

    $79.88
    $79.88 $96.99
    Case of 12 $6.66/filter
  • 12x12x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    12x12x1 NaturalAire Microparticle MERV 10

    $178.99
    $178.99
    Case of 12 $14.92/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
  • 10x24x1 NaturalAire Standard MERV 8 84858.011024 (12 Filters)
    MERV 8
    AAF Flanders

    10x24x1 NaturalAire Standard MERV 8

    $165.99
    $165.99
    Case of 12 $13.83/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
  • 16x24x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    AAF Flanders

    16x24x1 NaturalAire Healthy Ultra MERV 13

    $203.99
    $203.99
    Case of 12 $17.00/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
  • 12x25x1 NaturalAire Standard MERV 8 84858.011225 (12 Filters)
    MERV 8
    AAF Flanders

    12x25x1 NaturalAire Standard MERV 8

    $149.99
    $149.99
    Case of 12 $12.50/filter
  • 12x18x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    AAF Flanders

    12x18x1 NaturalAire Healthy Ultra MERV 13

    $277.99
    $277.99
    Case of 12 $23.17/filter
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