• 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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but we know there's nothing in your cart.

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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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16x25x4 Standard Filters

NOTE: Please compare the actual size of your current filter with the actual sizes listed on our site. A nominal 16" x 25" x 4" filter can be different actual sizes depending on the brand of your air cleaner.
Showing 1 -  8 of 8 Products
16x25x5 AIRx DUST Honeywell FC100A1029 Replacement Air Filter - MERV 8, 2 pack
$34.98 / Filter
$43.72 Save 20%!
16x25x5 AIRx ALLERGY Honeywell FC100A1029 Replacement Air Filter - MERV 11, 2 pack
$42.48 / Filter
$53.10 Save 20%!
16x25x5 AIRx HEALTH Honeywell FC100A1029 Replacement Air Filter - MERV 13, 2-Pack
$47.48 / Filter
$59.35 Save 20%!
16x25x5 AIRx ODOR Honeywell FC100A1029 Replacement Air Filter - Carbon, 2-Pack
$41.50 / Filter
$51.87 Save 20%!
16x25x4 AIRx DUST Air Filter - MERV 8, 6-Pack
$23.33 / Filter
$29.16 Save 20%!
16x25x4 AIRx ALLERGY Air Filter - MERV 11, 6-Pack
$24.99 / Filter
$31.24 Save 20%!
16x25x4 AIRx HEALTH Air Filter - MERV 13, 6-Pack
$33.33 / Filter
$41.66 Save 20%!
16x25x4 AIRx ODOR Air Filter - Carbon, 6-Pack
$32.99 / Filter
$41.24 Save 20%!
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What Our Customers Have to Say

Rick 1 day ago
5
Product is what I expected.
Rick 1 day ago
5
Product is what I expected.
Angela C. 2 days ago
5
Great quality filters and the price is reasonable.
Cheryl A. 2 days ago
5
June 2026 was our fourth or fifth purchase from Discount Filters. The AC filters we've purchased are reasonably priced as well as having an advertised discount (email). Shipping has been excellent and on time. We will continue using them for our filter needs.