Description
Actual dimensions are 20 x 21.13 x .75. Accumulair brand: 21x21.5x1 American Standard TFE210A9FR20 style whole house filters, exactly constructed to substitute for the original brand American Standard TFE210A9FR20 filters. Completely box-formed with no forming or combs needed. MERV graded to ASHRAE specs establishing function to the level of the name brand American Standard TFE210A9FR20 air filters. Photo: Example filter image displayed is not true to size and is included to show configuration purposes. Name brands and American Standard TFE210A9FR20 identifier are included for air filter substitution identification only.