Description
Actual dimensions are 19.13 x 19.88 x 4.25. Accumulair brand: 19x20x4.25 Totaline FILBBFNC0021 style whole house air filters, exactly built to replace OEM Totaline FILBBFNC0021 air filters. Completely box-formed so no assembly or combs required. MERV graded to ASHRAE standards assuring filtration equal to the OEM Totaline FILBBFNC0021 air filter. Photo: Sample filter image as displayed is not to scale and is shown for design purposes only. OEM names and Totaline FILBBFNC0021 part numbers displayed for air filter replacement identification use.