Filter/Regulator/Lubricator, FRL40, 1/2 Inch NPTAssy. Not Compatible w/10681 Use air preparation devices, such as Filter-Regulator-Lubricators (FRL Units) are an excellent means of keeping your air supply in top condition, as well as enabling your tools and equipment to operate at their peak performanceUnit has modular connections with ounting brackets for easy installation. 1/2 Inch NPT Inlet/Outlet PortsAlso included are bushings (2) to educe the 1/2 Inch NPT openings of the Filter-Regulator-Lubricator to 3/8 Inch NPT. Filter: Five-micron filter element is standardManually rotate drain plug to discharge contaminants. Regulator: Compensation built into unit responds faster to changes in incoming pressure and flowBuilt-in dual PSIG|Bar pressure dial gauge. Lubricator: Built-in check valve permits tool to be filled with oil without having to turn off air pressureAdjustable oil drop to meter amount of oil into air system. Part # 10690 Sold in qty's of 1 Country of origin United States Product type Parts