Actual size is 19.75 x 19.88 x 4.38. Accumulair brand 20x20x5 Honeywell F100E1024 substitute whole house air filters, specifically designed to substitute for the OEM Honeywell F100E1024 air filters. Completely assembled with no forming or combs needed. MERV classified to ASHRAE 52.2 test grades establishing filtration equal to the original brand Honeywell F100E1024 filters. Photo: The example air filter image as displayed is not to scale and is included to show construction only. Company names and Honeywell F100E1024 P/N displayed for filter style purposes.
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