Actual dimensions are 20 x 25.88 x 4.88. Accumulair brand: 20x26x5 Comfort Plus F825-0549 replacement whole house filters, exactly constructed to be an alternative to the name brand Comfort Plus F825-0549 air filters. Fully assembled - no forming or combs needed. MERV rated to ASHRAE specifications ensuring operation to the level of the OEM Comfort Plus F825-0549 filter. Notice: The example filter picture as displayed is not true to size and is included to show design purposes only. OEM names and Comfort Plus F825-0549 identifier displayed for air filter replacement identification use.
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