Description
Actual dimensions are 21.25 x 27.25 x 4.38. Accumulair brand: 21.5x27.5x5 Honeywell FC100A1045 style whole house air filters, exactly constructed to substitute for the original brand Honeywell FC100A1045 filters. Fully box-formed - no assembly or combs required. MERV classified to ASHRAE 52.2 test specifications establishing operation equal to the OEM Honeywell FC100A1045 filters. Photo: The sample filter pic as shown is not true to size and is displayed for design purposes only. Company names and Honeywell FC100A1045 P/N included for filter substitution purposes only.