Actual size is 20.75 x 20.25 x 5.25. Accumulair brand 20x20x5 BDP CMF2020 replacement whole house filters, exactly designed to replace the original manufacturer BDP CMF2020 air filters. Completely box-formed with no assembly or combs required. MERV rated to ASHRAE 52.2 test specifications assuring particle filtration as good or better than the name brand BDP CMF2020 filters. Photo: Example filter picture displayed is not the actual dimensions and is displayed for configuration purposes. Company names and BDP CMF2020 part numbers are used for air filter substitution identification use.
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