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You are here: Chandlery > Hull Maintenance > Anodes for Boats > MG Duff ZD56 4'' Disc Anode

MG Duff ZD56 4'' Disc Anode

Diameter (mm)Weight (kg)Part NumberIncludedStud Size Normal Price Online Price  
100mm1kgZD56backing pad & nutM10 (not included)£24.40£21.96


The MG Duff 4'' disc shaped zinc anode is ideal for protecting your boat during salt water use.
Can be bolted through the hull and disc centre to attach to the vessel.
Available in other diameters upon request.
When your boats 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 detioration of metal 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. The choice of the anode composition is also very important to the nature of the water:
Salt water: zinc anode (in stock)
Fresh water: magnesium anode
Brackish (mixture of salt and fresh) water: aluminium anode

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