Description
Actual dimensions are 20.1 x 21.1 x 5. Accumulair brand, 21x21.5x5 Trane BAYFTAH21M replacement whole house filters, exactly constructed to substitute for the OEM Trane BAYFTAH21M filters. Completely built - no forming or combs required. MERV rated to ASHRAE grades assuring filtration as good or better than the OEM Trane BAYFTAH21M air filters. Notice: The example filter pic as displayed is not to scale and is included to show construction purposes only. Company names and Trane BAYFTAH21M identifier are listed for filter replacement identification purposes only.