Eastman 60145 Aluminum Flexible Anode Rod, 45 inch The Eastman flexible aluminum anode rod helps prolong the life of your water heater tank by attracting corrosion to itself. The rod corrodes through electrolysis, a process that protects the steel walls of the water heater by attracting corrosion to a more noble metal.The anode rod is built with a carbon steel cable and 4-sections of aluminum links with zinc alloy. It is easy to install by attaching it to the top of the tank to keep it steady. The anode rod should be inspected periodically and replaced every 4 to 5-years. Anode rods are Lead-Free compliant for safe water drinking. Features ?NO ROTTEN EGG SMELL- Prevents the corrosion and sulfur smell of water heater tanks. ?MEASUREMENT- Measures 45 inches in length. 1-1/6 inch HEX head for installation. ?QUALITY- The anode rod is built with a carbon steel cable and 4-sections of aluminum links with zinc alloy. Anode rods are Lead-Free compliant for safe water drinking. ?FUNCTIONALITY- The Eastman flexible aluminum anode rod helps prolong the life of your water heater tank by attracting corrosion to itself. Designed for residential water heater tanks. ?INSTALLATION- Minimum clearance of 12 inches required for installation. Equipped with a 3/4 inch NPT fitting. USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.