Description
Actual Dimensions: 20.75 x 20.63 x 5. Accumulair brand: 20x21x5 Emerson F8110321 replacement whole house air filters, specifically constructed to substitute for the name brand Emerson F8110321 filters. Completely built - no forming or combs needed. MERV classified to ASHRAE 52.2 test specifications ensuring operation as good or better than the original manufacturer Emerson F8110321 air filter. Note: The example air filter image shown is not the actual dimensions and is shown for design purposes. Trade names and Emerson F8110321 identifier included for filter substitution identification purposes only.