The Anode Rod/Cap Assembly from RHEEM MFG COMPANY measures 0.700 inches in diameter and 24 inches in length, designed to protect your water heater from corrosion. This magnesium anode rod is essential for extending the lifespan of your tank by preventing rust and degradation. It is compatible with various RHEEM models, ensuring a perfect fit. The assembly is easy to install and maintain, making it a vital component for any water heating system. Adhering to industry standards, this anode rod is a reliable choice for enhancing the durability of your water heater.