Free Shipping & Returns

Free Shipping for all domestic orders. No minimum order, no special rules, no hidden fees.

Free returns if you're not completely satisfied for any reason.
1 Year Purchase Guarantee

We know buying replacement filters can be a challenge, especially if it's your first time. That's why we make your purchase risk free by offering free returns for up to 1 year. Learn more
Made With Care in Indiana, USA

Our ClearChoice and AirX filters are made in our factory and headquarters here in Indiana, with great attention to quality. Donâ€™t settle for poorly-made Chinese knock offs. Filters are not just replacement parts, they are the water and the air that our families drink and breathe.

Cart 0

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

Trane Air Filters

Trane 5" PerfectFit Filters

Trane 1" PerfectFit Prefilters

Trane PerfectFit Accordian

If you have a Trane furnace filter at home, then you'll need the Trane PerfectFit air filter to help filter out those unwanted particles that are floating in your home's air. Depending on what type of furnace you have, depends on which kind of Trane air filter you need. We carry standard one inch sizes as well as five inch and accordian style furnace filters. These filters are excellent at cleaning your home's air while helping eliminate common household allergens like mold, dust, pollen as well as reducing odors from cooking, smoking, bathroom smells and more. If you're unsure which size filter you need, typically the filter size is printed on the filter itself, or you can call into customer service and someone will help you determine your size. As always, Discount Filters offers free shipping and returns on all air filters. Get your Trane PerfectFit air filter today and save big.

We filters

Turn off your furnace / air conditioner fan during filter changes

Save Your Furnace Tip #10