AC Filters and Furnace Filters

Save money and time by buying your replacement AC filters from Factory Direct Filters. We offer standard, hard-to-find, and custom Aerostar air conditioner filters for your home or business. These filters meet or exceed the same quality as branded AC and furnace filters at a fraction of the name-brand price!

When you buy replacement air conditioner filters from us, you'll enjoy the following advantages:

  • Our AC filters are available in any custom or standard size you need.
  • A choice of MERV ratings from 8 to 13, so you can find the filtration efficiency that's right for your home or business.
  • Made in America. You don't have to wait for international shipping or suffer those higher costs.
  • Energy-efficiency – replacing your AC or furnace filters regularly reduces your energy costs by up to 15%.
  • The lowest price guaranteed. Factory Direct = Discount AC Filters!
  • Quantity discounts – the more you buy, the more money and time you save.
  • Free shipping!

Our AC filters for your home or business are made from high-quality synthetic media and moisture-resistant frames. They're versatile and work in air conditioners and furnaces. All you have to do is determine the right filter size for your system, how many you need, and which MERV rating works best for your home or office. Then, just click "add to cart" and you'll soon enjoy breathing cleaner air.

HVAC Air Filters

Filters By Size

The Ultimate Air Conditioner Air Filter

Looking for an air conditioner filter replacement, but haven't found the right size? Tired of adding it to your shopping list once every month? Have past filters have been overpriced or poor quality? With Factory Direct Filters, we can solve all your common filter issues. By offering both standard and custom sizing, we can provide you with the perfect fit for your AC or furnace. Save time with our subscription option and receive replacements each month without lifting a finger. And we always have the lowest price AC filters in the market.