Actual size is 20 x 25.63 x .75. Accumulair brand: 21x26x1 Trane TFE260A9AH20 replacement whole house filters, specifically engineered to substitute for the original brand Trane TFE260A9AH20 filters. Fully built - no forming or combs needed. MERV rated to ASHRAE ratings assuring function as good or better than the name brand Trane TFE260A9AH20 filters. Note: Example air filter pic shown is not the actual dimensions and is displayed for construction purposes only. Company names and Trane TFE260A9AH20 part numbers are used for filter replacement identification use.
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