Magnesium anode rods produce a strong current than Aluminum rods making it more effective at keeping the water tanks from corroding Effectively neutralize the sulfurs odors, ensuring clean and freshly water for showering, dishwashing, and daily use Make of magnesium alloy, it can attract corrosive and rust, significantly extending the life of the water heater tanks Adopting standard 3 / 4inch thread, suitable for most household water heaters Anode rod is expected to provide about two years of protections, Manufacturer: Hsyzygian