Description
Actual size is 20.1 x 21.1 x 5. Accumulair brand: 21x21.5x5 Trane BAYFTAH21M style whole house air filters, exactly designed to replace original brand Trane BAYFTAH21M air filters. Completely box-formed - no forming or combs required. MERV graded to ASHRAE grades establishing operation equal to the original brand Trane BAYFTAH21M filters. Notice: The example filter picture displayed is not the actual dimensions and is included to show configuration purposes only. Brand names and Trane BAYFTAH21M part numbers are included for filter substitution purposes.