Actual size is 20.1 x 23.2 x 5. Brand: Accumulair. 21x23.5x5 American Standard TFM235A0AH00 compatible whole house air filters, exactly designed to replace the name brand American Standard TFM235A0AH00 air filters. Fully constructed so no forming or combs required. MERV rated to ASHRAE 52.2 test classifications establishing filtration as good or better than the original brand American Standard TFM235A0AH00 filters. Notice: Example air filter pic shown is not the actual dimensions and is there to show style only. Brand names and American Standard TFM235A0AH00 P/N displayed for filter replacement identification use.
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