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Need a different depth?

Same size, deeper filter

Below is 18x18 at 1 ez flow″. 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.

18x18x2 Shop this size 18x18x4 Built to order

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

  • Custom Size Flanders EZ Flow Fiberglass MERV 1-4 Air Filter
    MERV 1-4
    AAF Flanders

    Custom Size Flanders EZ Flow Fiberglass MERV 1-4 Air Filter

    $199.99
    $199.99
  • 14x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011430 (12 Filters)
    MERV 1-4
    AAF Flanders

    14x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $97.99
    $97.99
    Case of 12 $8.17/filter
  • 17-1/2x17-1/2x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.01175175 (12 Filters)
    MERV 1-4
    AAF Flanders

    17-1/2x17-1/2x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $89.99
    $89.99
    Case of 12 $7.50/filter
  • 20x22x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.012022 (12 Filters)
    MERV 1-4
    AAF Flanders

    20x22x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $75.99
    $75.99
    Case of 12 $6.33/filter
  • 17x21x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011721 (12 Filters)
    MERV 1-4
    AAF Flanders

    17x21x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $96.99
    $96.99
    Case of 12 $8.08/filter
  • WAREHOUSE DEAL 18x25x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter (12 Filters)
    MERV 1-4Up to $11.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 18x25x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $52.88
    $52.88 $63.99
    Case of 12 $4.41/filter
  • 21x21x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.012121 (12 Filters)
    MERV 1-4
    AAF Flanders

    21x21x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $87.99
    $87.99
    Case of 12 $7.33/filter
  • 20x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.012030 (12 Filters)
    MERV 1-4
    AAF Flanders

    20x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $85.99
    $85.99
    Case of 12 $7.17/filter
  • 30x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.013030 (12 Filters)
    MERV 1-4
    AAF Flanders

    30x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $227.99
    $227.99
    Case of 12 $19.00/filter
  • 16x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011630 (12 Filters)
    MERV 1-4
    AAF Flanders

    16x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $87.99
    $87.99
    Case of 12 $7.33/filter
  • WAREHOUSE DEAL 18x36x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter (12 Filters)
    MERV 1-4Up to $47.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 18x36x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $79.88
    $79.88 $126.99
    Case of 12 $6.66/filter
  • 14x25x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011425 (12 Filters)
    MERV 1-4
    AAF Flanders

    14x25x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $61.99
    $61.99
    Case of 12 $5.17/filter
  • 16x16x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011616 (12 Filters)
    MERV 1-4
    AAF Flanders

    16x16x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $59.99
    $59.99
    Case of 12 $5.00/filter
  • 20x22-1/4x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.01202214 (12 Filters)
    MERV 1-4
    AAF Flanders

    20x22-1/4x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $74.99
    $74.99
    Case of 12 $6.25/filter
  • 22x22x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.012222 (12 Filters)
    MERV 1-4
    AAF Flanders

    22x22x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $95.99
    $95.99
    Case of 12 $8.00/filter
  • 10x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter 10055.011030 (12 Filters)
    MERV 1-4
    AAF Flanders

    10x30x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter

    $71.99
    $71.99
    Case of 12 $6.00/filter
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