Actual dimensions are 20.25 x 20.75 x 5.25. Accumulair brand: 20x20x5 Goodman 9183960 substitute whole house filters, exactly designed to substitute for the original manufacturer Goodman 9183960 filters. Fully constructed with no assembly or combs needed. MERV graded to ASHRAE classifications assuring function as good or better than the name brand Goodman 9183960 filter. Note: The sample filter pic shown is not true to size and is displayed for configuration purposes only. Name brands and Goodman 9183960 identifier are listed for air filter substitution identification purposes.
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