Mueller 102-703 102-703HN Heavy Duty Boiler Drain 1/2" MPT (1/2"Sweat) x 3/4" hose thread For cold water, oil, or air up to 125 PSI Large flow capacity brass body with 45-Degree outlet Neoprene seal disc - Cast iron handle Complies with ANSI B2.1 and ANSI B2.4