Description
Actual dimensions are 20 x 23.13 x .75. Accumulair brand 21x23.5x1 American Standard TFP235A0AH11 substitute whole house filters, specifically engineered to be an alternative to the original manufacturer American Standard TFP235A0AH11 air filters. Completely built - no assembly or combs required. MERV classified to ASHRAE 52.2 test specs ensuring performance equal to the original brand American Standard TFP235A0AH11 air filter. Notice: Example filter picture as displayed is not the actual dimensions and is included to show configuration only. Brand names and American Standard TFP235A0AH11 P/N shown for air filter replacement purposes.