Description
Actual Size: 19.13 x 19.88 x 4.25. Accumulair brand, 19x20x4.5 Carrier FILBBFNC0021 replacement whole house air filters, specifically engineered to be an alternative to the original brand Carrier FILBBFNC0021 filters. Fully assembled with no assembly or combs required. MERV rated to ASHRAE 52.2 test grades ensuring particle filtration equal to the OEM Carrier FILBBFNC0021 filters. Notice: The example filter picture as shown is not true to size and is there to show construction purposes only. Trade names and Carrier FILBBFNC0021 part numbers are used for air filter replacement identification use.