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MG Duff disc shaped zinc anode
Can be bolted through the hull and the preformed hole in disc centre to attach to the hull.
Kit includes backing pad, nut and washer but not the bolt
Ideal for protecting your boat in salt water
When your hull is immersed in water, anodes protect the various metal components (propellor shaft, keel, rudder, engine) from the deterioration caused by galvanic corrosion
Galvanic corrosion (also called electrolyte) is the deterioration of metal which occurs when dissimlar metals are joined together by a conductor in an electrically conductive fluid.
The least noble metal (the anode) dissolves while the most noble metal (the cathode) remains protected.
Zinc is the correct metal for yacht protection in salt water