Description
Actual Dimensions: 20.63 x 26.25 x .75. Accumulair brand, 21x27x1 Trane BAYFTFR21W1A compatible whole house filters, exactly engineered to substitute for the name brand Trane BAYFTFR21W1A filters. Fully box-formed so no assembly or combs needed. MERV classified to ASHRAE 52.2 test grades establishing filtration to the level of the original brand Trane BAYFTFR21W1A air filters. Notice: The sample air filter image as displayed is not the actual dimensions and is displayed for configuration purposes only. OEM names and Trane BAYFTFR21W1A part numbers are listed for filter style identification purposes only.