Description
Actual size is 20.63 x 26.25 x .75. Accumulair brand 21x27x1 American Standard BAYFTFR21W1A style whole house air filters, exactly constructed to be an alternative to the original brand American Standard BAYFTFR21W1A air filters. Fully box-formed - no assembly or combs required. MERV classified to ASHRAE 52.2 test standards ensuring operation as good or better than the original brand American Standard BAYFTFR21W1A filter. Notice: The sample air filter pic displayed is not to scale and is included to show construction only. Company names and American Standard BAYFTFR21W1A P/N are included for air filter style identification purposes only.