The Carrier EF660015 is a combination gas valve kit designed for use with natural gas or propane (LP) gas furnaces. This 2-pound unit includes a 1/2-inch slow-opening gas valve and a Liquid Propane (LP) conversion kit. The valve itself is a solenoid valve, meaning it uses a 24-volt electrical signal to control the flow of gas. https://www.partshnc.com/24v-12-3wc-gasvlvwlp-kit-2