Magnesium Sacrificial Anodes


Don’t sacrifice your boat — or the environment; attach sacrificial magnesium anodes from Martyr to your boat’s bottom to protect against corrosion below the waterline.

Traditional zinc anodes can be harmful to aquatic life, as they contain trace amounts of the heavy metal cadmium — and elevated levels of cadmium and zinc have been deemed toxic to the marine environment. Magnesium is a safe and effective alternative. 

CMP, Martyr’s parent company, is the only magnesium anode manufacturer that offers a full line of material-certified magnesium anodes. Martyr offers several other options, including die-cast zinc and aluminum anodes, but for exclusive fresh water usage, magnesium is best. A package retails for between $64.99 and $119.99.

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South Shore JUN17