Description
Actual dimensions are 19.75 x 24.25 x 4.75. Accumulair brand, 20x25x5 GeneralAire AC-1 substitute whole house air filters, specifically constructed to be an alternative to the original manufacturer GeneralAire AC-1 filters. Fully assembled so no forming or combs required. MERV graded to ASHRAE 52.2 test grades establishing particulate capture as good or better than the original brand GeneralAire AC-1 filter. Photo: The sample air filter pic shown is not true to size and is included to show design only. OEM names and GeneralAire AC-1 part numbers are used for filter style identification.