Filter, Filter Type , Performance Rating MERV 17, Actual Depth 1 9/16 in, Actual Height 16 5/16 in, Actual Width 12 5/8 in, Compatible Grainger Part Number 2HNP4, Compatible Manufacturer Model Number 2HNP4, Number of Filters 1, Nominal Depth 2 In., Nominal Height 12 In., Nominal Width 16 In., Filters Down To 0.3 micron, Filters Out , Viruses, Filter Efficiency 99.97 Percent, Frame Material Paper, Includes Frame Yes, Number of Layers 1