The Rheem Anode Rod measures 0.900 inches in diameter and 42.375 inches in length, crafted from high-quality magnesium. This essential component helps prevent corrosion in water heaters, extending the lifespan of the unit. Designed for compatibility with various Rheem models, it is easy to install and maintain. The anode rod plays a critical role in protecting the tank from rust and degradation, ensuring efficient operation. Regular replacement of the anode rod is recommended to maintain optimal performance and longevity of your water heating system.