Traditional zinc Martyr anode protects inboard boat’s prop shaft from corrosion in salt water.

1-3/4 inch Zinc Streamlined Shaft Anode | Martyr CMX08

• Streamlined inboard propeller shaft anode
• Designed to mount to 1 3/4 in. diameter prop shaft to protect from the corrosive effects of stray current
• Zinc anode is for use in salt water
• Martyr anodes are made of a high purity specialized alloy based on the US Mil Spec
• Anode secures to prop shaft with 2 interlocking halves and allen head bolts with bolt retaining washers
• 1 3/4 in. inside diameter
• 3 1/4 in. outsid