Actual size is 20 x 21.13 x .75. Brand: Accumulair. 21x21.5x1 Trane TFE215A9AH30 compatible whole house filters, specifically engineered to replace OEM Trane TFE215A9AH30 air filters. Fully constructed so no forming or combs needed. MERV graded to ASHRAE classifications assuring particle filtration as good or better than the OEM Trane TFE215A9AH30 filter. Photo: Example filter pic as shown is not true to size and is included to show design only. Brand names and Trane TFE215A9AH30 P/N included for air filter substitution identification use.
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