The STEADY-ROD Aluminum/Zinc Flexible Anode Rod provides superior protection to one your home's primary appliances: the water heater. This passive (non-powered) anode rod offers a triple defense against the three most common problems homeowners face with aging water heaters. First, the blend of aluminum and zinc attracts the rust to itself instead of the structural walls of your water heater. This prevents from premature deterioration of the insides of your tank. Second, the optimal blend of aluminum and zinc is designed to naturally elimnated the unpleasant sulfur smell that many types of water contains. This means NO MORE ROTTEN EGGS SMELL! Lastly, the preventative maintentance of periodically replacing your rod can up to double the life of your water heater. Please note: We do not recommend this product when a water softener is in use. The STEADY-ROD Aluminum/Zinc Flexible Anode Rod is built in 4-sections to create an overall length of 44 inches long. The flexibility of the design makes it ideal for installing in the tight locations that many water heaters are located. In addition, the mutiple sections allow you to have the option of trimming the sections to fit the height of any home water heater. Buy with confidence! All of our products are backed with a 120-day manufacturer’s money back guarantee!