Description
Actual size is 19.13 x 19.88 x 4.25. Accumulair brand, 19x20x4.5 Carrier FNCCAB0021 substitute whole house air filters, exactly engineered to replace original brand Carrier FNCCAB0021 filters. Completely box-formed so no assembly or combs required. MERV rated to ASHRAE specs ensuring particulate capture as good or better than the name brand Carrier FNCCAB0021 filters. Notice: Example filter image shown is not the actual dimensions and is included to show style purposes only. Trade names and Carrier FNCCAB0021 P/N displayed for air filter replacement identification use.