• Spend $70 or more and your order ships free! We'll get your filters out the door fast so you can enjoy clean air and water.*

    * Orders under $70 ship for $5.99.

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

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  • Spend $70 or more and your order ships free! We'll get your filters out the door fast so you can enjoy clean air and water.*

    * Orders under $70 ship for $5.99.

  • 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

Ronald B. 1 day ago
5
No problems. Just like every year.They slide in place of the old ones every fall.
Ira C. 1 day ago
5
Everything arrived new filter installed all is good
Gg 1 day ago
5
Wow! :) Thank You Discount Filter! This store made everything breeze! This filter arrived incredibly fast! I was so surprised how quick it was delivered! :) And in perfect condition! They have so many filters available in stock, which was great, as I was looking for a specific size and was so glad to find it! I would definitely recommend checking out Discount Filters for filter in the future! They are kind and personable. And their shop offer great prices and excellent quality!
William G. 2 days ago
5
So far so good.