Description
Actual Dimensions: 19.75 x 24.25 x 4.75. Accumulair brand: 20x25x5 Armstrong AE20A-1 substitute whole house filters, specifically built to replace the name brand Armstrong AE20A-1 filters. Fully assembled so no assembly or combs needed. MERV graded to ASHRAE 52.2 test specifications assuring particle filtration equal to the OEM Armstrong AE20A-1 air filter. Photo: The example air filter image as shown is not true to size and is displayed for design only. Trade names and Armstrong AE20A-1 identifier shown for filter style identification purposes.