Actual Size: 20.1 x 23.2 x 5. Accumulair brand: 21x23.5x5 American Standard AFM235A0AH0 replacement whole house air filters, exactly constructed to replace the original brand American Standard AFM235A0AH0 air filters. Fully built with no assembly or combs needed. MERV graded to ASHRAE grades establishing performance as good or better than the OEM American Standard AFM235A0AH0 filters. Notice: Example air filter picture as shown is not true to size and is included to show configuration only. Trade names and American Standard AFM235A0AH0 P/N included for air filter substitution identification purposes.
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