Actual size is 20.1 x 21.1 x 5. Accumulair brand: 21x21.5x5 American Standard TFM215A0AH10 compatible whole house air filters, specifically designed to replace OEM American Standard TFM215A0AH10 filters. Fully assembled - no forming or combs required. MERV graded to ASHRAE 52.2 test specifications assuring particle capture equal to the original brand American Standard TFM215A0AH10 filters. Photo: Example filter image displayed is not to scale and is displayed for configuration only. OEM names and American Standard TFM215A0AH10 part numbers are used for air filter substitution identification purposes.
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