Description
Actual size is 20.7 x 26.2 x 5. Brand: Accumulair. 21x27x5 Trane BAYFTFR21M replacement whole house air filters, specifically engineered to substitute for the OEM Trane BAYFTFR21M filters. Completely box-formed - no assembly or combs required. MERV classified to ASHRAE standards establishing particle filtration equal to the OEM Trane BAYFTFR21M air filter. Notice: Example filter pic shown is not to scale and is there to show style purposes. Name brands and Trane BAYFTFR21M identifier shown for air filter substitution identification use.