Coalescing Filter Element Filter Type Coalescing Particulate Filter Rating 1 micron Filter Element Material Microglass Compatible Grainger Part Number 493L50 Compatible Manufacturer Part Number AOP030GNFI Filter Efficiency 99.925 Percent For Fluid Type Compressed Air Nitrogen Gas For Substance Type Air Nitrogen ISO Class 2 3 Series OIL-X Genuine Standards EX1935/2004 Exempt FDA Approved Title 21 CFR Compliant