Webstone 54443WPR-LF 3/4 Swt Lf Iso Exp E2 W/Lf Prv 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 inch sweat Compact version of the original isolator