Description
Actual size is 19.13 x 19.88 x 4.25. Accumulair brand, 19x20x4.5 Carrier FILBBFNC0021 substitute whole house air filters, exactly constructed to substitute for the name brand Carrier FILBBFNC0021 air filters. Fully box-formed with no forming or combs needed. MERV classified to ASHRAE classifications assuring particulate capture equal to the name brand Carrier FILBBFNC0021 filters. Photo: The example air filter pic displayed is not to scale and is displayed for style only. OEM names and Carrier FILBBFNC0021 identifier are included for filter substitution identification only.