Actual dimensions are 20.7 x 26.2 x 5. Brand: Accumulair. 21x27x5 American Standard BAYFRAME21A substitute whole house filters, exactly built to substitute for the OEM American Standard BAYFRAME21A air filters. Fully assembled with no assembly or combs required. MERV graded to ASHRAE classifications assuring particle capture to the level of the OEM American Standard BAYFRAME21A air filter. Photo: Example air filter image as shown is not to scale and is included to show configuration purposes. Trade names and American Standard BAYFRAME21A part numbers included for air filter replacement identification purposes.
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