Actual Size: 20.1 x 25.7 x 5. Accumulair brand, 21x26x5 American Standard TFM260A0AH10 replacement whole house air filters, exactly designed to replace the OEM American Standard TFM260A0AH10 air filters. Fully constructed so no forming or combs required. MERV rated to ASHRAE standards establishing particle filtration equal to the original manufacturer American Standard TFM260A0AH10 air filters. Photo: The sample air filter image displayed is not to scale and is included to show style purposes only. OEM names and American Standard TFM260A0AH10 part numbers displayed for filter replacement identification purposes only.
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