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 press-to-connect end connections with an inboard bead and EPDM O-ring 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.