Actual dimensions are 20.63 x 26.25 x .75. Brand: Accumulair. 21x27x1 Trane TFE210A9FR20 substitute whole house filters, specifically designed to replace the original manufacturer Trane TFE210A9FR20 filters. Completely box-formed - no forming or combs required. MERV rated to ASHRAE specifications establishing filtration to the level of the OEM Trane TFE210A9FR20 air filter. Notice: Sample air filter picture displayed is not true to size and is included to show design only. Trade names and Trane TFE210A9FR20 P/N are used for air filter style identification purposes.
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