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FiltersFast replacement home air filters should be replaced every one to three months depending on air quality and usage. Replacement 1", 2", 4", and 5" air filters are available and come in select MERV ratings.


FiltersFast Air Filters full product list:


FiltersFast IH2A2323BSOANPSO HEPA Replacement for Koch BioMax H64A3X2 - 23.3x23.3x11.5
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within the continental U.S.

In Stock!
Ships in 3 to 4 business days.

Retail: $350.99

Our Price: $300.99

Save 14%!

Filters Fast® FFC20255TAB Replacement for GeneralAire 4401, 13415 2-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $60.99

Our Price: $50.95

Save 16%!

Filters Fast® Replacement for GeneralAire 4368 - 20x25x5, 2-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $75.99

Our Price: $56.95

Save 25%!

Filters Fast® Replacement for GeneralAire 4366, GA100A29 - MERV11, 16x25x5 - 2-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $69.99

Our Price: $59.95

Save 14%!

Filters Fast® Replacement for Trane Perfect Fit BAYFTFR14P4A - 6-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $100.95

Our Price: $60.95

Save 40%!

Filters Fast® Replacement for Carrier KFAFK0212MED - MERV 8 - 6-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $67.99

Our Price: $57.95

Save 15%!

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