6 1/2 in. Zinc Rudder Anode | Canada Metals CMR07

Traditional zinc Martyr anode is designed to protect boat’s rudder or trim tab from corrosion in salt water.

• Rudder and trim tab anode
• Designed to mount to rudders and trim tabs to protect from the corrosive effects of stray current
• 6 1/2 in. diameter
• Sold a 2 halves held together with a stainless steel bolt and nut
• Each half is 7/8 in. thick
• Zinc anode is for use in salt water
• Martyr anodes are made of a high purity specialized alloy based on the US Mil Spec