3 3/4 in. Magnesium Rudder Anode | Canada Metals CMR03M

Magnesium Martyr anode is designed to protect boat’s rudder or trim tab from corrosion in fresh water lakes and rivers.

• Rudder and trim tab anode
• Designed to mount to rudders and trim tabs to protect from the corrosive effects of stray current
• 3 3/4 in. diameter
• Sold as 2 halves held together with a stainless steel bolt and nut
• Each half is 1/2 in. thick
• Magnesium anode is for use in fresh water applications
• Martyr anodes are made of a high purity specialized alloy based on the US Mil Spec