• 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.

Menu

Trane 21 x 21 x 5" BAYFTDN21M



What Our Customers Have to Say

David D. 1 day ago
5
I've been buying these from Discount Filters for years, they perform well and priced better than the competition. Twice the filters have been damaged in shipping and were replaced free of charge. Hard to argue with that service which is why I keep ordering them annually.
Carol 1 day ago
5
This is a perfect fit and the thickness helps with the pet hair
Lynn G. 1 day ago
5
product is good, have been using for about 20 years
Tony H. 1 day ago
5
I did a lot of online searching because the company I've been getting my furnace filters from raised their prices way too much. This was the best price by far. We'll see how they do throughout the year!