The Controller Assembly 100309444 from Rheem is a vital component for managing the operation of gas water heaters. This assembly is designed for easy installation and compatibility with various Rheem models, ensuring optimal performance. Constructed from high-quality materials, it provides durability and reliability. The controller features precise specifications for seamless integration into your water heating system, enhancing efficiency and safety. Ideal for replacements, this assembly meets industry standards, making it essential for maintaining the functionality of your Rheem water heater.