Description
Actual size is 20 x 21.13 x .75. Accumulair brand: 21x21.5x1 American Standard BAYFTFR21W1A compatible whole house air filters, specifically built to be an alternative to the name brand American Standard BAYFTFR21W1A filters. Completely box-formed - no assembly or combs required. MERV rated to ASHRAE grades establishing particle capture as good or better than the OEM American Standard BAYFTFR21W1A filters. Note: The sample filter image shown is not the actual dimensions and is displayed for style purposes. Brand names and American Standard BAYFTFR21W1A identifier are listed for filter replacement identification.