Our 1 inch air filters are available for residential and commercial use and come in standard sizes like 20x20 air filters, hard-to-find measurements like 14x20 air filters, and custom sizes to accommodate your exact needs.
Whether you are in the market for a thin 1 inch 20x25 air filter to replace your dirty AC filter, or you are searching for a higher filtration efficiency to provide the cleanest air to your home and family, Factory Direct Filters will deliver high-performing products at an affordable price. Below are the features you can expect from our 1 inch air filter offerings.
Find the right 1 inch air filter for your individual needs today!
Select your size from the drop down menu or shop extended sizes.