Actual size is 19.5 x 19.5 x .75. Accumulair brand, 20x20x1 BDP P102-550 style whole house filters, specifically engineered to replace the original brand BDP P102-550 air filters. Fully box-formed so no forming or combs required. MERV classified to ASHRAE 52.2 test classifications assuring particle capture as good or better than the OEM BDP P102-550 filters. Photo: Example filter image displayed is not the actual dimensions and is included to show construction only. Company names and BDP P102-550 P/N included for filter style identification purposes.
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