Actual size is 20 x 25.63 x .75. Brand: Accumulair. 21x26x1 Trane TFP260A0AH11 style whole house air filters, specifically built to substitute for the original brand Trane TFP260A0AH11 filters. Completely box-formed - no forming or combs needed. MERV rated to ASHRAE specs establishing particle capture equal to the original brand Trane TFP260A0AH11 filter. Notice: Example filter picture shown is not to scale and is there to show style purposes only. OEM names and Trane TFP260A0AH11 identifier are listed for air filter style identification use.
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