Description
Actual size is 19.75 x 24.25 x 4.75. Brand: Accumulair. 20x25x5 Armstrong ABS20A-1 style whole house air filters, specifically designed to be an alternative to the original manufacturer Armstrong ABS20A-1 air filters. Completely box-formed - no assembly or combs needed. MERV graded to ASHRAE 52.2 test classifications assuring filtration to the level of the OEM Armstrong ABS20A-1 air filters. Photo: The sample air filter picture as shown is not the actual dimensions and is displayed for design purposes only. OEM names and Armstrong ABS20A-1 part numbers are listed for air filter substitution identification purposes.