Martyr Zinc Streamlined Shaft Anode 3/4in 19mm CMT-X01

Martyr zinc streamlined shaft anode (part #CMT-X01) for 3/4″ (19mm) propeller shafts. Split clamp-on design with streamlined profile to minimize drag compared to standard collar anodes. Common fit for smaller inboard engines and sailboat shaft installations. 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.