Description
Actual Size: 19.75 x 24.25 x 4.75. Accumulair brand 20x25x5 GeneralAire 4501 substitute whole house filters, exactly engineered to be an alternative to the OEM GeneralAire 4501 filters. Completely assembled so no assembly or combs required. MERV graded to ASHRAE ratings assuring operation equal to the original brand GeneralAire 4501 filters. Notice: Sample air filter image as shown is not to scale and is there to show construction purposes only. Name brands and GeneralAire 4501 identifier displayed for filter style identification only.