Description
Actual size is 20.63 x 26.25 x .75. Accumulair brand 21x27x1 American Standard BAYFTFR21W1A compatible whole house filters, exactly constructed to replace name brand American Standard BAYFTFR21W1A air filters. Fully built so no assembly or combs required. MERV rated to ASHRAE 52.2 test classifications ensuring particulate filtration to the level of the original brand American Standard BAYFTFR21W1A air filters. Notice: The sample filter pic shown is not the actual dimensions and is shown for configuration only. Trade names and American Standard BAYFTFR21W1A identifier displayed for air filter style purposes only.