Description
Actual dimensions are 19.13 x 19.88 x 4.25. Accumulair brand: 19x20x4.25 BDP FILBBFNC0021 substitute whole house filters, exactly built to be an alternative to the name brand BDP FILBBFNC0021 filters. Fully assembled - no forming or combs needed. MERV graded to ASHRAE classifications establishing particle capture to the level of the original brand BDP FILBBFNC0021 filters. Photo: Example filter image displayed is not to scale and is there to show style only. Trade names and BDP FILBBFNC0021 identifier displayed for air filter replacement identification use.