Description:

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Martyr CMPNDMF14UNS, Magnesium Alloy Bravo 3 Mercury Prop Nut Assembly

Martyr Anodes provide low cost marine cathodic protection for boats, marine structures and boat equipment. Often called "Boat Zincs”, Martyr Anodes are made of a specialized alloy based on the US Mil Spec using only High Purity metals. Martyr is the only manufacturer that offers all three alloys that protect your boat from corrosion that can occur in salt water, brackish water and fresh water. Martyr manufactures sacrificial zinc anodes, aluminum anodes, and magnesium anodes, all of which are proven to prevent boat corrosion that leads to pitting to the hull plate, rudders, and bilge keels. Martyr anodes also protect propellers, shafts, shaft brackets, stern tubes, engines and rudders. Martyr provides anode kits that include all installation hardware and instructions. For more information visit

Product Features

• Cathodic protection for Pleasure craft boats
• Magnesium Alloy for use only in fresh water
• Only alloy proven to protect in fresh water
• Not recommended for use in salt or brackish water
• High-quality Martyr anodes are pressure diecast and manufactured to strict quality standards through an ISO 9001 Quality Management System
• Mil Spec Alloy
• Includes anode, insert and hardware
• Magnesium Alloy for use only in freshwater

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Open Box Condition Notice:

Items are in perfect working condition. Items may have some minor signs of use, and the original protective wrapping may be absent or the item may be repackaged. All accessories will be included.

Return Policy:

You may return any item purchased within 30 days of receiving the shipment.