Description
Actual dimensions are 19.75 x 24.25 x 4.75. Brand: Accumulair. 20x25x5 Armstrong ABS20A-1 compatible whole house filters, specifically designed to be an alternative to the name brand Armstrong ABS20A-1 air filters. Completely box-formed with no assembly or combs required. MERV classified to ASHRAE 52.2 test ratings assuring operation as good or better than the original brand Armstrong ABS20A-1 filter. Notice: The sample air filter picture shown is not to scale and is included to show construction purposes only. Company names and Armstrong ABS20A-1 P/N are shown for air filter substitution identification purposes only.