Description
Actual dimensions are 20.75 x 20.63 x 5. Brand: Accumulair. 20x21x5 Emerson F825-0337 compatible whole house filters, exactly constructed to substitute for the OEM Emerson F825-0337 filters. Completely box-formed - no forming or combs required. MERV graded to ASHRAE grades establishing particulate capture as good or better than the name brand Emerson F825-0337 air filter. Photo: Sample air filter picture as displayed is not the actual dimensions and is displayed for construction only. Trade names and Emerson F825-0337 part numbers are listed for air filter style identification use.