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Need a different depth?

Same size, deeper filter

Below is 25x25 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.

25x25x2 Shop this size 25x25x4 Built to order

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

  • PrimeShield Advanced MERV 11 Pleated Air Filters (12 Pack)
    MERV 11
    RTF

    PrimeShield Advanced MERV 11 Pleated Air Filters

    From $119.99
    From $119.99
    Case of 12 $10.00/filter
  • 25x25x1 Koch Disposable Fiberglass Panel 274-250-250 (12 Filters)
    MERV 1-4
    Koch

    25x25x1 Disposable Fiberglass Panel Filter

    $96.99
    $96.99
    Case of 12 $8.08/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
  • Filtrete™ Allergen Defense Filter (MPR 1000) — Front view
    MPR 1000
    Filtrete

    Allergen Defense Filter

    From $14.99
    From $14.99
  • 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
  • Filtrete™ Allergen Reduction Filter (MPR 1500) — Front view
    MPR 1500
    Filtrete

    Allergen Reduction Filter

    $21.99
    $21.99
  • 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
  • 25x25x1 Koch Multi-Pleat XL8 MERV 8 High Capacity 102-031-014 (12 Filters)
    MERV 8 HC
    Koch

    25x25x1 Multi-Pleat XL8 MERV 8 High Capacity

    $304.68
    $304.68
    Case of 12 $25.39/filter
  • 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
  • PrimeShield WashGuard Metal HVAC Air Filter - Washable & Reusable
    MERV 8
    RTF

    PrimeShield WashGuard Metal HVAC Air Filter - Washable & Reusable

    From $149.99
    From $149.99
  • 25x25x1 Koch Multi-Pleat Green13 MERV 13 High Capacity 102-101-014 (12 Filters)
    MERV 13 HC
    Koch

    25x25x1 Multi-Pleat Green13 MERV 13 High Capacity

    $783.36
    $783.36
    Case of 12 $65.28/filter
  • 25x25x1 Koch Multi-Pleat XL11 MERV 11 High Capacity 102-081-014 (12 Filters)
    MERV 11 HC
    Koch

    25x25x1 Multi-Pleat XL11 MERV 11 High Capacity

    $350.28
    $350.28
    Case of 12 $29.19/filter
  • 25x25x1 Koch Multi-Pleat XL8 Standard Capacity MERV 8 102-041-014 (12 Filters)
    MERV 8
    Koch

    25x25x1 Multi-Pleat XL8 MERV 8 Standard Capacity

    $130.99
    $130.99
    Case of 12 $10.92/filter
  • 25x25x1 Koch Multi-Pleat XL10 MERV 10 High Capacity 102-121-014 (12 Filters)
    MERV 10 HC
    Koch

    25x25x1 Multi-Pleat XL10 MERV 10 High Capacity

    $336.60
    $336.60
    Case of 12 $28.05/filter
  • 25x25x1 Exact Filters Fiberglass MERV 1-4 (12 pack)
    MERV 1-4
    Exact Filters

    25x25x1 Fiberglass MERV 1-4

    $196.99
    $196.99
    Case of 12 $16.42/filter
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