The Henny Penny 18721 is a 1/4" FPT (Female Pipe Thread) hot water solenoid valve, designed for use in food service equipment. It is a normally closed (NC) 2-way valve, meaning it is closed when de-energized and opens when energized. This type of valve is commonly used to control the flow of hot water in applications such as steam tables and kettles. https://partsfe.com/steam-solenoid-valve12-240v-for-henny-penny-part-18721