• No minimums, no surprises — we ship every order for free! We’ll get your filters out the door fast so you can enjoy clean air and water without paying extra.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

    Learn More

  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

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  • No minimums, no surprises — we ship every order for free! We’ll get your filters out the door fast so you can enjoy clean air and water without paying extra.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

    Learn More

  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

Cart 0

We don't know what's in your water,
but we know there's nothing in your cart.

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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
$38.95 / Filter
$48.69 Save 20%!
Ships Free!
20x20x5 AIRx ALLERGY Honeywell FC100A1011 Replacement Air Filter - MERV 11, 2-Pack
$48.95 / Filter
$61.19 Save 20%!
Ships Free!
20x20x5 AIRx HEALTH Honeywell FC100A1011 Replacement Air Filter - MERV 13, 2-Pack
$57.95 / Filter
$72.44 Save 20%!
Ships Free!
20x20x4 AIRx DUST Air Filter - MERV 8, 6-Pack
$24.49 / Filter
$30.61 Save 20%!
Ships Free!
20x20x4 AIRx ALLERGY Air Filter - MERV 11, 6-Pack
$26.49 / Filter
$33.11 Save 20%!
Ships Free!
20x20x4 AIRx HEALTH Air Filter - MERV 13, 6-Pack
$30.49 / Filter
$38.11 Save 20%!
Ships Free!
20x20x4 AIRx ODOR Air Filter - Carbon, 6-Pack
$30.09 / Filter
$37.62 Save 20%!
Ships Free!
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What Our Customers Have to Say

John a. 1 day ago
5
Satisfied with the product
JOSEPH S. 1 day ago
5
good product/price
Walker H. 1 day ago
5
Good price and fast shipping, my service company was charging me twice the price each year for the same model number
barbara g. 1 day ago
5
I have used the 16X25X5 Allergy Honeywell Air Filters for several years. I appreciate your service and annually automatically having the filters shipped to me. Thanh you for your service and product.