Air Scrubber Filter, Filter Type Prefilter, Performance Rating MERV 6, Actual Depth 16 in, Actual Height 1/2 in, Actual Width 16 in, Compatible Grainger Part Number 30RV34, 30RV35, 30RV36, 30RV37, Compatible Manufacturer Model Number PAB 1000, PAB1K-GP3, PAB1K-973, PAB1K-993, PAB1K-99ALM, Number of Filters 40, Filter Layer Type Polyester, Nominal Depth 1 in, Nominal Height 16 in, Nominal Width 16 in, Filters Down To 5 micron, Filters Out Dust, Filter Efficiency 85 Percent