Dewalt D55040 Quadraport Air Line Splitter with Regulator is factory tested to assure leak-free operation. The D55040 is equipped with four universal push-to-connect couplers for ease of operation, a high-flow regulator for increased performance, as well as a liquid-filled gauge for durability and more accurate reading closer to job site. The Quadraport can operate at two different PSI settings at the same time for a wider variety of applications. A 3/8-inch diameter inlet fitting allows higher air flow and reduces PSI drop when used with a 1/2-inch diameter hose. The D55040 features a robust carry handle for added protection and hang holes for convenient, secure remote positioning.