Actual Dimensions: 12.13 x 19.88 x 4.25. Accumulair brand 12x20x4.25 BDP FILBBFNC0014 substitute whole house air filters, specifically designed to replace original brand BDP FILBBFNC0014 air filters. Fully constructed with no assembly or combs needed. MERV rated to ASHRAE 52.2 test grades establishing particulate filtration as good or better than the name brand BDP FILBBFNC0014 air filters. Note: Sample air filter pic displayed is not true to size and is there to show construction purposes only. OEM names and BDP FILBBFNC0014 P/N are used for air filter style purposes only.
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