Actual dimensions are 19.75 x 19.88 x 4.38. Accumulair brand, 20x20x5 Honeywell F55F1052 replacement whole house air filters, exactly engineered to be an alternative to the original brand Honeywell F55F1052 air filters. Fully box-formed so no assembly or combs required. MERV rated to ASHRAE classifications establishing particulate capture as good or better than the OEM Honeywell F55F1052 air filters. Note: The example air filter image as shown is not the actual dimensions and is displayed for configuration only. Name brands and Honeywell F55F1052 part numbers are included for air filter substitution purposes.
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