Description
Actual dimensions are 19.75 x 24.25 x 4.75. Accumulair brand: 20x25x5 Armstrong ABS20A-1 style whole house filters, specifically constructed to substitute for the original manufacturer Armstrong ABS20A-1 filters. Completely assembled with no assembly or combs needed. MERV classified to ASHRAE classifications establishing performance to the level of the name brand Armstrong ABS20A-1 filters. Photo: The example filter image as shown is not the actual dimensions and is there to show configuration purposes only. Brand names and Armstrong ABS20A-1 P/N are included for air filter substitution purposes only.