Actual size is 20.75 x 20.25 x 5.25. Accumulair brand 20x20x5 Five Seasons FS2020 replacement whole house filters, exactly engineered to substitute for the name brand Five Seasons FS2020 air filters. Fully box-formed so no forming or combs needed. MERV rated to ASHRAE 52.2 test grades assuring particle capture to the level of the original manufacturer Five Seasons FS2020 air filters. Note: The example air filter pic as shown is not true to size and is included to show design purposes only. Trade names and Five Seasons FS2020 P/N included for filter replacement identification only.
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