Actual dimensions are 19.75 x 20.75 x 4.88. Accumulair brand, 20x20x5 Skuttle 448-3 compatible whole house filters, exactly designed to replace name brand Skuttle 448-3 air filters. Completely constructed with no assembly or combs needed. MERV classified to ASHRAE ratings assuring particle capture to the level of the name brand Skuttle 448-3 filters. Note: Sample air filter pic as shown is not to scale and is shown for design purposes. Trade names and Skuttle 448-3 identifier are shown for filter substitution identification purposes.
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