Description
Actual dimensions are 20.1 x 23.2 x 5. Accumulair brand 21x23.5x5 American Standard TFM235B0AH01 replacement whole house filters, exactly designed to substitute for the OEM American Standard TFM235B0AH01 air filters. Fully built so no assembly or combs required. MERV graded to ASHRAE 52.2 test classifications assuring function equal to the original manufacturer American Standard TFM235B0AH01 filters. Photo: The example air filter pic displayed is not true to size and is included to show design purposes. Brand names and American Standard TFM235B0AH01 part numbers are used for filter style identification purposes.