6" Air Filters | Factory Direct Filters

6" Air Filters

Our 6" air filters are great at filtering air pollutants in businesses and residential properties. Keep your clients and coworkers safe from potentially harmful debris with quality filtration and high filtration efficiency from Factory Direct Filters. Choose or customize your size and select the MERV rating that works best for you.

6-Inch Filters that Really Work

Often, non-branded products do not deliver the best quality. However, with our aftermarket 6-inch furnace filters, you can expect the very best performance and cleanest air quality. Take a look at some of our other features you'll enjoy when you buy from us.

  • Manufactured in-house, in the USA
  • Lowest prices guaranteed
  • MERV 8, 11, and 13 options
  • Free shipping with every order
  • Custom sizes available

    Choose your 6" air filter today for cleaner, fresher air.

    Select your standard 6-inch AC or furnace filter below or create a custom-sized filter.

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