Description
Actual size is 20 x 23.13 x .75. Accumulair brand, 21x23.5x1 American Standard TFE235A1AH20 replacement whole house air filters, specifically designed to substitute for the name brand American Standard TFE235A1AH20 filters. Fully box-formed so no assembly or combs needed. MERV rated to ASHRAE 52.2 test standards assuring function as good or better than the OEM American Standard TFE235A1AH20 filters. Note: Sample filter pic as displayed is not the actual dimensions and is shown for configuration only. Trade names and American Standard TFE235A1AH20 identifier are shown for air filter replacement identification.