Comprehensive Safety and Control: This RV water heater thermal cutoff kit is expertly designed to maintain optimal water temperature, preventing scalding. Premium Materials for Reliable Operation: Featuring components like a copper wire and safety- fuses, this kit ensures a secure aquatic environment. The inclusion of an ECO thermostat assembly acts as a safeguard against potential mishaps. Wide Compatibility Ensured: The kit fits a variety of electric including 21140 and multiple models from GCH and series. It's designed to seamlessly replace parts for enhanced functionality and compatibility. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:Plastic+Metal Package Contents: 2 x T'STAT assembly 2 x ECO assembly 2 x black foam cover 2 x copper connecting wire (connector colors are random, no specification is accepted) 4 x fuses Only the above package content, other products are not