Homewerks VBD-QTR-C3B Boiler Drain with 1/4-Turn, Male Thread and Solder, Brass, 1/2-Inch 3/4-Inch hose thread outlet Quarter-turn operation 1/2-Inch male thread or 1/2-Inch solder CSA B125 Certified Meets ANSI / NSF 61 low lead requirements