Actual Dimensions: 20 x 25.63 x .75. Accumulair brand, 21x26x1 American Standard TFP260A0AH00 replacement whole house air filters, exactly designed to substitute for the original brand American Standard TFP260A0AH00 filters. Fully constructed with no assembly or combs required. MERV rated to ASHRAE 52.2 test grades assuring particle capture equal to the original manufacturer American Standard TFP260A0AH00 air filter. Note: Sample filter picture shown is not true to size and is shown for configuration purposes. Brand names and American Standard TFP260A0AH00 identifier displayed for filter substitution identification use.
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