The NIBCO® quarter-turn boiler drain is manufactured from brass, with a PTFE seat and nitrile O-ring. The low-pressure drain includes a brass ball and brass stem. The 3/4-inch size is furnished in male threads only. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. Choose NIBCO® flow control products for the most specified, versatile and economical option in commercial and residential applications. NIBCO® quarter-turn boiler drains are backedmore by the NIBCO 2-year limited warranty. less