Description
Actual size is 20.75 x 20.25 x 5.25. Accumulair brand: 20x20x5 Westinghouse BB2020 compatible whole house filters, exactly built to replace the original manufacturer Westinghouse BB2020 filters. Fully assembled with no assembly or combs required. MERV graded to ASHRAE 52.2 test grades establishing particle filtration to the level of the original brand Westinghouse BB2020 filters. Note: Sample air filter picture displayed is not the actual dimensions and is there to show configuration purposes. Name brands and Westinghouse BB2020 part numbers are shown for air filter replacement identification.