Eastwood's modular air management systems were exclusively designed to deliver the purest air with maximum lubricity. This 1/2" NPT matched system uses a state of the art connector system that allows you to remove components without disassembling the entire system. The system leads off with a moisture separator that removes particulates down to 40 microns. Then through a high quality regulator with a 0-160PSI gauge. The air then runs through steel constructed lubricator with 3-position adjustment knob and sight glass. 10 oz reservoir capacity. 1/2" NPT. MADE IN USA