Suburban Mfg Water Heater Thermostat Switch. It is compatible with all Suburban models with serial numbers after 940900091. Voltage Rating: 120 Volt. Includes a 90 day limited warranty. Features of Suburban Mfg 232306 Water Heater Thermostat Switch Designed for use with RV water heaters Compatible with all Suburban models with serial numbers after 940900091 Voltage Rating: 120V 90 day limited warranty Package Contents: Suburban Mfg 232306 Water Heater Thermostat Switch Suburban Mfg 232306: Water Heater Thermostat Switch