Actual dimensions are 20 x 25.63 x .75. Brand: Accumulair. 21x26x1 American Standard TFE260A9AH00 style whole house filters, exactly built to be an alternative to the name brand American Standard TFE260A9AH00 filters. Fully assembled so no forming or combs required. MERV graded to ASHRAE standards establishing operation to the level of the original brand American Standard TFE260A9AH00 filter. Notice: Sample filter picture as displayed is not true to size and is shown for design purposes only. Trade names and American Standard TFE260A9AH00 identifier are shown for filter style identification use.
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