Description
Actual size is 20.63 x 26.25 x .75. Accumulair brand: 21x27x1 Trane BAYFTFR21W1A style whole house filters, exactly built to substitute for the name brand Trane BAYFTFR21W1A filters. Completely built - no assembly or combs needed. MERV graded to ASHRAE 52.2 test classifications assuring particulate capture equal to the original brand Trane BAYFTFR21W1A air filter. Notice: The example filter pic shown is not to scale and is shown for configuration purposes. Name brands and Trane BAYFTFR21W1A P/N used for air filter replacement identification only.