• CMMZC406M sacrificial anode
• 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
• Bolt-on style anode is designed to mount to hull
• 9 in. length
• 4.4 in. width
• 1 in. thickness
• 5 in. bolt hole center to bolt hole center