Description
Actual dimensions are 19.75 x 24.25 x 4.75. Brand: Accumulair. 20x25x5 Armstrong AE20A-1 substitute whole house filters, specifically engineered to substitute for the name brand Armstrong AE20A-1 filters. Fully built - no forming or combs needed. MERV rated to ASHRAE 52.2 test standards establishing particle filtration to the level of the name brand Armstrong AE20A-1 air filters. Notice: The example air filter picture as shown is not true to size and is there to show construction only. Trade names and Armstrong AE20A-1 P/N used for air filter style identification purposes only.