Actual dimensions are 17.13 x 26.25 x .75. Accumulair brand, 17.5x27x1 Trane TFE175A9FR30 style whole house air filters, exactly designed to substitute for the name brand Trane TFE175A9FR30 filters. Completely box-formed so no assembly or combs required. MERV classified to ASHRAE standards assuring operation as good or better than the original manufacturer Trane TFE175A9FR30 filter. Notice: Sample filter picture shown is not to scale and is shown for style purposes only. OEM names and Trane TFE175A9FR30 P/N are shown for filter style identification only.
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