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Need a different depth?

Same size, deeper filter

Below is 23-1/2x23-1/2 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.

23-1/2x23-1/2x2 Built to order 23-1/2x23-1/2x4 Built to order

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

  • 11-1/2x23-1/2x1 Exact Filters Pleated MERV 11 (12 pack)
    MERV 11
    Exact Filters

    11-1/2x23-1/2x1 Pleated MERV 11

    $247.99
    $247.99
    Case of 12 $20.67/filter
  • 31-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    31-1/2x23-1/2x1 Pleated MERV 13

    $560.99
    $560.99
    Case of 12 $46.75/filter
  • 21-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    21-1/2x23-1/2x1 Pleated MERV 13

    $285.99
    $285.99
    Case of 12 $23.83/filter
  • 33-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    33-1/2x23-1/2x1 Pleated MERV 13

    $567.99
    $567.99
    Case of 12 $47.33/filter
  • 18-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    18-1/2x23-1/2x1 Pleated MERV 13

    $279.99
    $279.99
    Case of 12 $23.33/filter
  • 15-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    15-1/2x23-1/2x1 Pleated MERV 13

    $266.99
    $266.99
    Case of 12 $22.25/filter
  • 20-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    20-1/2x23-1/2x1 Pleated MERV 13

    $279.99
    $279.99
    Case of 12 $23.33/filter
  • 19-1/2x23-1/2x1 Exact Filters Pleated MERV 8 (12 pack)
    MERV 8
    Exact Filters

    19-1/2x23-1/2x1 Pleated MERV 8

    $211.99
    $211.99
    Case of 12 $17.67/filter
  • 16-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    16-1/2x23-1/2x1 Pleated MERV 13

    $266.99
    $266.99
    Case of 12 $22.25/filter
  • 8-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    8-1/2x23-1/2x1 Pleated MERV 13

    $250.99
    $250.99
    Case of 12 $20.92/filter
  • 17-1/2x23-1/2x1 Exact Filters Fiberglass MERV 1-4 (12 pack)
    MERV 1-4
    Exact Filters

    17-1/2x23-1/2x1 Fiberglass MERV 1-4

    $183.99
    $183.99
    Case of 12 $15.33/filter
  • 18-1/2x23-1/2x1 Exact Filters Pleated MERV 11 (12 pack)
    MERV 11
    Exact Filters

    18-1/2x23-1/2x1 Pleated MERV 11

    $258.99
    $258.99
    Case of 12 $21.58/filter
  • 13-1/2x23-1/2x1 Exact Filters Fiberglass MERV 1-4 (12 pack)
    MERV 1-4
    Exact Filters

    13-1/2x23-1/2x1 Fiberglass MERV 1-4

    $167.99
    $167.99
    Case of 12 $14.00/filter
  • 24-1/2x23-1/2x1 Exact Filters Pleated MERV 11 (12 pack)
    MERV 11
    Exact Filters

    24-1/2x23-1/2x1 Pleated MERV 11

    $270.99
    $270.99
    Case of 12 $22.58/filter
  • 13-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    13-1/2x23-1/2x1 Pleated MERV 13

    $264.99
    $264.99
    Case of 12 $22.08/filter
  • 31-1/2x23-1/2x1 Exact Filters Pleated MERV 8 (12 pack)
    MERV 8
    Exact Filters

    31-1/2x23-1/2x1 Pleated MERV 8

    $528.99
    $528.99
    Case of 12 $44.08/filter
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