Exalto Anode zinc w/Brass plugAnode zinc with Brass plug is a type of sacrificial anode used primarily in marine and underwater applications to prevent galvanic corrosion of metal components, particularly those made of steel, on boats, ships, and other submerged structures. These anodes are commonly used on boats and ships to protect underwater parts like propellers, shafts, rudders, and hulls from corrosion, ultimately prolonging the lifespan of the vessel. Properly maintained zinc anodes with brass plugs are essential for ensuring the integrity and safety of marine equipment and structures.