Armstrong Home Air Filters


Size Reference Part number
20x24.25x5 AE20A-1 AMC20A-1 ABS20A-1
20x25x5 AE20A-1 AMC20A-1 ABS20A-1


Armstrong Air furnace filters are available in Minimum Efficiency Reporting Values (MERV), from 8 to 15. Armstrong Air is a long-time competitor in the air filter industry, and has been making quality air filters since 1982. Depending on your needs, you may require a higher rating. Our premium aftermarket Armstrong Air furnace filters remove pollen, pet dander, mold spores, smoke, dust, insecticides, coal, and bacteria down to 0.3 microns in size. As with any filter, Armstrong Air filters last up to three months, so change them regularly for maximum air quality and efficient operation of your HVAC unit.

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Armstrong Home Air Filters

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