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Need a different depth?

Same size, deeper filter

Below is 13x20 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.

13x20x2 Built to order 13x20x4 Built to order

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

  • 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
  • 25x25x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    25x25x1 NaturalAire Healthy Ultra MERV 13

    $230.99
    $230.99
    Case of 12 $19.25/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
  • 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
  • 16x16x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    AAF Flanders

    16x16x1 NaturalAire Healthy Ultra MERV 13

    $275.99
    $275.99
    Case of 12 $23.00/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
  • 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
  • 08x24x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    MERV 13
    AAF Flanders

    8x24x1 NaturalAire Healthy Ultra MERV 13

    $219.99
    $219.99
    Case of 12 $18.33/filter
  • 16x20x1 NaturalAire Standard MERV 8 84858.011620 (12 Filters)
    MERV 8
    AAF Flanders

    16x20x1 NaturalAire Standard MERV 8

    $96.99
    $96.99
    Case of 12 $8.08/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
  • 22x22x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
    AAF Flanders

    22x22x1 NaturalAire Healthy Ultra MERV 13

    $213.99
    $213.99
    Case of 12 $17.83/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
  • 13x20x1 Exact Filters Fiberglass MERV 1-4 (12 pack)
    MERV 1-4
    Exact Filters

    13x20x1 Fiberglass MERV 1-4

    $174.99
    $174.99
    Case of 12 $14.58/filter
  • 10x20x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8Up to $30.76 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 10x20x1 NaturalAire Standard MERV 8

    $59.99
    $59.99 $90.75
    Case of 11 $5.45/filter
  • 13x20x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    13x20x1 Pleated MERV 13

    $253.99
    $253.99
    Case of 12 $21.17/filter
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