Description
Actual size is 19.13 x 19.88 x 4.25. Accumulair brand, 19x20x4.25 Day and Night FILBBFNC0021 substitute whole house filters, specifically designed to replace the original manufacturer Day and Night FILBBFNC0021 air filters. Fully assembled with no forming or combs needed. MERV rated to ASHRAE standards ensuring particulate filtration equal to the name brand Day and Night FILBBFNC0021 filters. Photo: Sample filter pic displayed is not to scale and is included to show style purposes. Name brands and Day and Night FILBBFNC0021 part numbers are included for air filter replacement identification only.