Description
Actual dimensions are 20.75 x 20.63 x 5. Accumulair brand 20x21x5 Emerson F8110321 compatible whole house filters, specifically constructed to be an alternative to the OEM Emerson F8110321 filters. Completely constructed - no forming or combs needed. MERV graded to ASHRAE grades establishing function equal to the original brand Emerson F8110321 filter. Notice: The sample air filter picture shown is not the actual dimensions and is displayed for configuration purposes only. OEM names and Emerson F8110321 identifier are listed for filter substitution identification purposes.