The NIBCO® Press System ball valve body is manufactured from lead free* Brass alloy and is dezincification resistant (DZR). The ball valve is designed with a PEX x Press-to-connect end connections and is an ideal valve to transition from copper to PEX piping. The PEX connection is F1960 (Cold Expansion) type. The press-to-connect end is engineered with an inboard bead and a leak detection EPDM O-ring press end for quick and easy copper to copper joinery. Properly applying pressure from a press-fit tool tightens the O-ring onto the tube, ensuring a clean, permanent, watertight seal in seconds, with no flame, solder or flux. The NIBCO® Press System is user friendly, quick and easy to install. When properly crimped a unique "N" witness mark is clearly visible. The lead free ball valve is specifically designed for use in systems that deliver water for human consumption. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. NIBCO® Press System applies the proven performance of press technology to NIBCO valves and fittings -- the most specified flow control products in the industry. The NIBCO® Press System features a full range of precision engineered copper fittings, bronze valves, accessories, pressing tools, jaws and chains. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO is the preferred brand in the industry.