Actual dimensions are 19.75 x 24.25 x 4.75. Brand: Accumulair. 20x25x5 GeneralAire MAC2000 Mega-MAC compatible whole house filters, specifically built to substitute for the OEM GeneralAire MAC2000 Mega-MAC air filters. Fully constructed with no assembly or combs needed. MERV rated to ASHRAE 52.2 test specifications ensuring particle capture as good or better than the OEM GeneralAire MAC2000 Mega-MAC filters. Notice: The sample air filter picture as shown is not to scale and is displayed for design purposes. OEM names and GeneralAire MAC2000 Mega-MAC identifier used for air filter replacement identification use.
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