Description
Actual Dimensions: 19.13 x 19.88 x 4.25. Accumulair brand: 19x20x4.25 BDP FILBBFNC0021 compatible whole house filters, specifically built to replace original brand BDP FILBBFNC0021 air filters. Fully constructed so no assembly or combs required. MERV classified to ASHRAE 52.2 test specifications ensuring performance equal to the original manufacturer BDP FILBBFNC0021 filters. Note: Sample air filter image displayed is not true to size and is displayed for design only. Name brands and BDP FILBBFNC0021 part numbers are shown for air filter style identification.