This Lochinvar Aluminum Anode Rod is a sacrificial component designed to protect the interior of water heaters from corrosion. The rod, made from high-quality aluminum, works by attracting corrosive elements present in the water, thus preventing them from damaging the tank. It is a standard-sized rod, compatible with most Lochinvar water heaters. Regular replacement of this anode rod can significantly extend the lifespan of a water heater. The product's aluminum construction ensures durability and reliable performance in various water conditions.