Actual Dimensions: 19.75 x 24.25 x 4.75. Brand: Accumulair. 20x25x5 GeneralAire 4001 replacement whole house filters, exactly built to replace the OEM GeneralAire 4001 air filters. Fully assembled - no forming or combs required. MERV graded to ASHRAE 52.2 test standards establishing performance to the level of the original manufacturer GeneralAire 4001 filters. Notice: The example filter pic shown is not the actual dimensions and is displayed for configuration purposes only. Brand names and GeneralAire 4001 P/N included for filter style identification.
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