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Need a different depth?

Same size, deeper filter

Below is 17-1/2x23-1/2 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.

17-1/2x23-1/2x2 Built to order 17-1/2x23-1/2x4 Built to order

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

  • 17-1/2x23-1/2x1 Exact Filters Pleated MERV 13 (12 pack)
    MERV 13
    Exact Filters

    17-1/2x23-1/2x1 Pleated MERV 13

    $279.99
    $279.99
    Case of 12 $23.33/filter
  • 17-1/2x23-1/2x1 Exact Filters Pleated MERV 11 (12 pack)
    MERV 11
    Exact Filters

    17-1/2x23-1/2x1 Pleated MERV 11

    $258.99
    $258.99
    Case of 12 $21.58/filter
  • Filtrete™ Allergen Defense Filter (MPR 1000) — Front view
    MPR 1000
    Filtrete

    Allergen Defense Filter

    From $14.99
    From $14.99
  • 17-1/2x23-1/2x1 Exact Filters Pleated MERV 8 (12 pack)
    MERV 8
    Exact Filters

    17-1/2x23-1/2x1 Pleated MERV 8

    $211.99
    $211.99
    Case of 12 $17.67/filter
  • 23-1/2x23-1/2x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.01235235 (12 Filters)
    MERV 1-4
    AAF Flanders

    23-1/2x23-1/2x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $102.99
    $102.99
    Case of 12 $8.58/filter
  • 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
  • 23-1/2x23-1/2x1 Exact Filters Fiberglass MERV 1-4 (12 pack)
    MERV 1-4
    Exact Filters

    23-1/2x23-1/2x1 Fiberglass MERV 1-4

    $184.99
    $184.99
    Case of 12 $15.42/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
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