20 X 20 X 4" Standard Filters

NOTE: Please compare the actual size of your current filter with the actual sizes listed on our site. A nominal 20" x 20" x 4" filter can be different actual sizes depending on the brand of your air cleaner.
Showing 1 -  7 of 7 Products
20x20x5 AIRx DUST Honeywell FC100A1011 Replacement Air Filter - MERV 8, 2-Pack
$48.69 / Filter
2 Pack Selected
$97.38
Ships Free!
20x20x5 AIRx ALLERGY Honeywell FC100A1011 Replacement Air Filter - MERV 11, 2-Pack
$61.19 / Filter
2 Pack Selected
$122.38
Ships Free!
20x20x5 AIRx HEALTH Honeywell FC100A1011 Replacement Air Filter - MERV 13, 2-Pack
$72.44 / Filter
2 Pack Selected
$144.88
Ships Free!
20x20x4 AIRx DUST Air Filter - MERV 8, 6-Pack
$30.61 / Filter
6 Pack Selected
$183.68
Ships Free!
20x20x4 AIRx ALLERGY Air Filter - MERV 11, 6-Pack
$33.11 / Filter
6 Pack Selected
$198.68
Ships Free!
20x20x4 AIRx HEALTH Air Filter - MERV 13, 6-Pack
$38.11 / Filter
6 Pack Selected
$228.68
Ships Free!
20x20x4 AIRx ODOR Air Filter - Carbon, 6-Pack
$37.62 / Filter
6 Pack Selected
$225.70
Ships Free!
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What Our Customers Have to Say

Wilbur 1 day ago
5
Been using these filters for several years. The quality seems to be on par with the original april- aire filters. The only negative for these filters is that the glue holding the paper to the frame of the filter box sometimes separates from the filter. However, proper placement of the filter compensates for that.
Mary Dodd 1 day ago
5
Good filter product
Guenther Schroeder 1 day ago
5
Great filters for our furnace. Furnace technician recently advised that we should be placing a 25" instead of a 24" filter in our furnace. Need to see how well that works. Thank you for your always great and PROMPT service. Guenther Schroeder.
Phil Kos 1 day ago
5
These are good, would recommend