Description
Actual size is 19.13 x 19.88 x 4.25. Accumulair brand, 19x20x4.25 Day and Night FILBBFNC0021 style whole house filters, exactly built to replace the name brand Day and Night FILBBFNC0021 air filters. Fully assembled with no assembly or combs needed. MERV graded to ASHRAE 52.2 test grades establishing performance to the level of the name brand Day and Night FILBBFNC0021 filters. Photo: Example filter picture as displayed is not the actual dimensions and is displayed for construction purposes only. OEM names and Day and Night FILBBFNC0021 part numbers are listed for filter style identification purposes.