Actual Dimensions: 19.75 x 19.88 x 4.38. Accumulair brand 20x20x5 Honeywell F100F1020 substitute whole house filters, specifically built to replace the original brand Honeywell F100F1020 air filters. Fully built so no assembly or combs required. MERV graded to ASHRAE grades establishing performance to the level of the name brand Honeywell F100F1020 air filters. Note: Example air filter image displayed is not the actual dimensions and is displayed for configuration purposes only. Company names and Honeywell F100F1020 identifier are listed for filter substitution identification use.
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