Webstone 54443WPR Isolator E2 Lead Free Tankless Water Heater Service Valve Kit, 3/4-Inch Sweat AB1953 2013 lead free compliant Includes a residential pressure relief valve (150 PSI/200K BTU) Hi-flow hose drains (500 WOG) Hot and cold set, 3/4" sweat Compact version of the original isolator