The Rheem Magnesium Anode Rod measures 0.840 inches in diameter and 58-3/16 inches long, designed to protect your water heater from corrosion. This essential component extends the lifespan of your water heater by attracting corrosive elements in the water. Constructed from high-quality magnesium, it ensures effective performance and durability. Compatible with various Rheem models, this anode rod meets industry standards for safety and efficiency. Ideal for residential and commercial applications, it helps maintain optimal water quality.