Features: 1.Water Heater Thermal Cutoff is made of metal that will melt (break) if the temperature exceeds the cut off limit. At that point the cut off will stop the flow of gas to the burner/water heater. The purpose is to cut off fuel in case of fire,and it works. 2.Designed for your mobile home water heater, this auto spare kit provides a reliable fuse that keeps the RV water heater in top condition and effectively provides you with hot water. 3.UL certified replacement: quality tinned copper wires, compatible with Atwood 93866 water heaters, thermal cut off 98 degree centigrade/ 208 Fahrenheit degree water heater parts .