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Need a different depth?

Same size, deeper filter

Below is 12x20 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.

12x20x2 Built to order 12x20x4 Built to order

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

  • 17x21x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8Up to $49.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 17x21x1 NaturalAire Standard MERV 8

    $104.88
    $104.88 $153.99
    Case of 12 $8.74/filter
  • WAREHOUSE DEAL 12x20x1 Flanders Nested Glass EZ-Green Filter (24 Filters)
    MERV 1-4Up to $35.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 12x20x1 Flanders Nested Glass EZ-Green Filter

    $79.88
    $79.88 $114.99
    Case of 24 $3.33/filter
  • PrimeShield Essential MERV 8 Pleated Air Filters (12 Pack)
    MERV 8
    RTF

    PrimeShield Essential MERV 8 Pleated Air Filters

    From $99.99
    From $99.99
    Case of 12 $8.33/filter
  • 15x30x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8
    AAF Flanders

    15x30x1 NaturalAire Standard MERV 8

    $167.99
    $167.99
    Case of 12 $14.00/filter
  • Filtrete™ Allergen Defense Filter (MPR 1000) — Front view
    MPR 1000
    Filtrete

    Allergen Defense Filter

    From $14.99
    From $14.99
  • 21x22x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
    MERV 10
    AAF Flanders

    21x22x1 NaturalAire Microparticle MERV 10

    $257.99
    $257.99
    Case of 12 $21.50/filter
  • AAF Flanders PREpleat M11 MERV 11 Standard Capacity (12 Filters)
    MERV 11
    AAF Flanders

    PREpleat M11 MERV 11 Standard Capacity

    From $123.99
    From $123.99
    Case of 12 $10.33/filter
  • 14x22x1 NaturalAire Standard MERV 8 Filters (12 pack)
    MERV 8Up to $47.11 offContact Support
    AAF Flanders

    WAREHOUSE DEAL 14x22x1 NaturalAire Standard MERV 8

    $105.88
    $105.88 $152.99
    Case of 12 $8.82/filter
  • Koch Disposable Polyester Panel Filter
    MERV 1-4
    Koch

    Disposable Polyester Panel Filter

    From $69.99
    From $69.99
  • PrimeShield Elite MERV 13 Pleated Air Filters (12 Pack)
    MERV 13
    RTF

    PrimeShield Elite MERV 13 Pleated Air Filters

    From $187.99
    From $187.99
    Case of 12 $15.67/filter
  • 12x20x1 AAF Flanders PREpleat LPD MERV 10 Standard Capacity 80055.011220 (12 Filters)
    MERV 10
    AAF Flanders

    12x20x1 PREpleat LPD MERV 10 Standard Capacity

    $104.99
    $104.99
    Case of 12 $8.75/filter
  • Filtrete™ Allergen Reduction Filter (MPR 1500) — Front view
    MPR 1500
    Filtrete

    Allergen Reduction Filter

    $21.99
    $21.99
  • AAF Flanders PREpleat Activated Carbon Odor Control (12 Filters)
    AAF Flanders

    PREpleat Activated Carbon Odor Control

    From $152.99
    From $152.99
    Case of 12 $12.75/filter
  • 12x20x1 Koch Multi-Pleat XL11 MERV 11 102-091-002 (12 Filters)
    MERV 11
    Koch

    12x20x1 Multi-Pleat XL11 MERV 11

    $167.52
    $167.52
    Case of 12 $13.96/filter
  • 12x20x1 Koch Multi-Pleat XL11 MERV 11 High Capacity 102-081-002 (12 Filters)
    MERV 11 HC
    Koch

    12x20x1 Multi-Pleat XL11 MERV 11 High Capacity

    $187.56
    $187.56
    Case of 12 $15.63/filter
  • 12x20x1 Koch Multi-Pleat XL10 MERV 10 102-111-002 (12 Filters)
    MERV 10
    Koch

    12x20x1 Multi-Pleat XL10 MERV 10

    $138.96
    $138.96
    Case of 12 $11.58/filter
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