The Robertshaw 720-070-1/2 X 3/4 7200IPER-S7C Ignition Gas Valve is a high-performance, multi-function gas control valve designed for use in heating applications such as furnaces, boilers, and water heaters. It features a 1/2-inch inlet and 3/4-inch outlet connection, making it suitable for a variety of HVAC and gas appliance systems. #Robertshaw #720-070 #IgnValve #Robertshawparts... https://www.partshnc.com/720-070-robertshaw-12-x-34-7200iper-s7c-ign-vlv