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  • Size
    • 1″ Air Filters
      • 10 x 10 x 1″
      • 12 x 12 x 1″
      • 12 x 20 x 1″
      • 12 x 24 x 1″
      • 12 x 30 x 1″
      • 14 x 14 x 1″
      • 14 x 20 x 1″
      • 14 x 24 x 1″
      • 14 x 25 x 1″
      • 14 x 30 x 1″
    • 1″ Air Filters
      • 16 x 16 x 1″
      • 16 x 20 x 1″
      • 16 x 24 x 1″
      • 16 x 25 x 1″
      • 18 x 18 x 1″
      • 18 x 20 x 1″
      • 18 x 24 x 1″
      • 18 x 30 x 1″
    • 1″ Air Filters
      • 20 x 20 x 1″
      • 20 x 22 x 1″
      • 20 x 24 x 1″
      • 20 x 25 x 1″
      • 20 x 30 x 1″
      • 24 x 24 x 1″
      • 24 x 30 x 1″
      • 25 x 25 x 1″
      • Click here to see a list of ALL of our sizes
    • 2″ Air Filters
      • 16 x 20 x 2″
      • 16 x 25 x 2″
      • 18 x 24 x 2″
      • 20 x 20 x 2″
      • 20 x 25 x 2″
      • 24 x 24 x 2″
      • Click here to see a list of ALL of our sizes
    • 4″ Air Filters
      • 16 x 25 x 4″
      • 20 x 20 x 4″
      • 20 x 25 x 4″
      • 24 x 24 x 4″
      • Click here to see a list of ALL of our sizes
    • Click here to see a list of ALL of our sizes
  • Brand
    • Brand Column 1
      • AAF
      • Accumulair
      • Ace
      • Air Bear
      • Air Demon
      • Air Guard
      • Air Kontrol
      • Amana
      • American Standard
      • Aprilaire
      • Arm & Hammer
      • Armstrong
    • Brand Column 2
      • BDP
      • BestAirPro
      • Blueair
      • Bryant
      • Carrier
      • ClimateMaster
      • Coleman
      • Comfort Plus
      • Day and Night
      • Dupont
      • Electro-Air
      • Emerson
    • Brand Column 3
      • Endust
      • Febreze
      • Filtrete
      • Five Seasons
      • Flanders
      • Frigidaire
      • GeneralAire
      • GermGuardian
      • Gibson
      • Goodman
      • Honeywell Filters
      • Idylis
    • Brand Column 4
      • Indigo
      • Kelvinator
      • Lennox
      • Maytag
      • Nordyne
      • Payne
      • Philco
      • Pro1 IAQ
      • Purolator
      • Rheem
      • Ruud
    • Brand Column 5
      • Skuttle Media Filters
      • Space-Gard
      • Tappan
      • Totaline
      • Trane
      • Trion Air Bear
      • Ultravation
      • Westinghouse
      • White Rodgers
      • Winix
      • York
      • See ALL of our brand replacement filters
  • Type
    • 1″ air filters
    • 2″ air filters
    • 4″ air filters
    • 16x25x5 Air Filters
    • 20x25x5 Air Filters
    • Air Purifier Filters
    • Custom Air Filters
    • Humidifier Filters
    • Whole house air filters
    • Vacuum Cleaner Filters
    • Vacuum Cleaner Bags
HomeFurnace Filter BrandsAmerican Standard Air Filters
  • American Standard PerfectFit

    American Standard PerfectFit

  • American Standard 1" PerfectFit

    American Standard 1" PerfectFit

  • American Standard 5" Whole House Filters

    American Standard 5" Whole House Filters

“When I moved into my new house, I discovered that my furnace uses a filter with unusual dimensions. It used to be really hard to find—before I discovered FilterBuy.com. Now, finding the right filter is really simple!”

Joe B. - Pompano Beach, FL

“My kids have some serious allergy problems that ordinary fiberglass filter furnaces did nothing to help. But since I switched to the AFB Platinum filter, which captures allergens as small as one micron, I'm hearing a lot fewer sniffling noses.”

Elizabeth Z. - Patterson, NJ

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