Actual dimensions are 20 x 25.88 x 4.88. Accumulair brand, 20x26x5 Emerson F825-0338 style whole house filters, specifically built to replace original manufacturer Emerson F825-0338 air filters. Completely box-formed so no assembly or combs required. MERV rated to ASHRAE 52.2 test grades establishing particle capture equal to the OEM Emerson F825-0338 filter. Note: Sample air filter image displayed is not true to size and is shown for construction purposes. OEM names and Emerson F825-0338 P/N are used for air filter replacement identification purposes only.
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