Martyr Zinc Streamlined Shaft Anode 30mm CMT-X30

Martyr zinc streamlined shaft anode (part #CMT-X30) for 30mm propeller shafts. Split clamp-on design with streamlined profile to minimize drag compared to standard collar anodes. Zinc alloy construction for saltwater and brackish water galvanic corrosion protection of the propeller shaft and surrounding underwater hardware. Replace when the anode is 50% or more consumed, pitted, cracked, or loose. Install on a clean bare-metal shaft surface; do not paint the anode. Ensure both halves are evenly clamped and fasteners are torqued securely. Verify shaft diameter before ordering.