Features： 1、Safe to Use: The copper wire and fuse ensure a secure water heating environment. The ECO thermostat assembly effectively prevents overheating incidents, enhancing safety. 2、Comprehensive Cutoff Kit: Designed for RV water heaters, this thermal cutoff kit efficiently regulates water temperature, safeguarding against overheating beyond the specified limit. It helps prevent scalding from excessively hot water. 3、Compatibility: The water heater thermal replacement part is compatible with most electric water heaters, such as replacement for GLM 21140, replacement for Mallory 9-72153, replacement for Mercruiser 45518A2, 45518A3, 45518A1, GCH6-4E, GH6-8E, G6A-6E, G6A-7E, G6A-8E, GCH6A-7E, GC6AA-7E, GC6AA-8E, GCH10A-2E, GCH10A-3E, G10-1E, etc. 4、Effortless Installation: Accompanied by a detailed user manual, installation is straightforward. Position the thermostat in the right cutout and the ECO in the left, replace the spring and washer, cover with the foam cover, and reconnect the wires. 5、Package Contents: 1 x T'STAT assembly, 1 x ECO assembly, 1 x black foam cover, 1 x copper connecting wire, and 2 x fuses. Specification： Item Name: RV Water Heater Thermal Cutoff Kit Main Material: Copper Wire, Foam Product Color: Red Package List： 1 * T'STAT Assembly 1 * ECO Assembly 1 * Black Foam Cover 1 * Copper Connecting Wire 2 * Fuses 1 * User Manual