A thermocouple is a safety device that automatically shuts off the flow of gas if the pilot light goes out. It may be used with home or RV gas water heaters, gas furnaces, gas space heaters, and gas wall furnaces. Replaces most thermocouples and comes complete with adapters for screw-in, clamp or push-in type thermocouples Kit contains one thermocouple, one adapter nut and one metal clip Made in USA Carded