Filterbuy provides a wide range of air filter sizes, thicknesses, and MERV ratings so you can find reliable aftermarket air filters for residential use as well as commercial or industrial applications.

Ready for cleaner air? Click here to find the right custom air filters for your home and upgrade your comfort with personalized solutions. Visit www.filterbuy.com!

We’ve got you covered with the largest selection of air filters available online. Factory Direct Low Prices Proudly Made in the U.S.A.

Select your air filter based on key factors: household size (400-3000 sq ft), number of occupants, presence of pets, allergy sufferers, and local air quality. For standard homes, choose MERV 8-11. Homes with pets or allergies need MERV 11-13.

Ensure your home's air is clean and healthy with durable 12x12x1 air filters from Filterbuy.com. Experience long-lasting, high-efficiency filtration. Click here to breathe easier!

Our furnace or AC filter orders ship within 24 hours. Find any MERV rating or size you need. All high-quality & American made air filters. Shop now!

Filterbuy’s carbon air filters are constructed using pleated filter media, reinforced wire backing for durability, and a heat and humidity-resistant frame for safety and structural integrity. Plus, they’re 100% manufactured in the United States and designed with recyclable materials.