Description
Actual size is 20.63 x 26.25 x .75. Accumulair brand 21x27x1 American Standard TFE210A9FR20 substitute whole house air filters, specifically constructed to replace OEM American Standard TFE210A9FR20 air filters. Fully built - no forming or combs needed. MERV classified to ASHRAE 52.2 test standards assuring particle filtration equal to the OEM American Standard TFE210A9FR20 air filters. Photo: Sample air filter pic shown is not the actual dimensions and is there to show design purposes only. Trade names and American Standard TFE210A9FR20 part numbers used for filter style identification purposes.