Martyr Anodes zinc rudder and trim tab anodes are engineered to protect underwater metal components from galvanic corrosion in saltwater environments. Made from high-quality zinc alloy, these sacrificial anodes corrode in place to shield rudders and trim tabs from costly damage caused by electrolysis and stray current. Designed for durability and a precise fit, they install easily and provide dependable long-term corrosion protection for saltwater boats.

• Rudder anodes are sold in pairs, with stainless steel bolt and nut.
• Easy installation underwater
• Bolt retaining washers prevent the anode from falling off