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    MG Duff Zinc Disc Anode

    from £15.40
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    For use on Hull, Skeg, Rudder or Trim Tab. Anodes must be fitted each side of a rudder or skeg.
    Use M10C bolts listed below.
    ZD58: 2.2Kg Height 33.5mm Dia: 150mm
    ZD56: 1Kg Height 25mm Dia: 100mm.
    ZD52: 0.27Kg Height 15mm Dia: 50mm.
    ZD59: Dia 70mm Pair

    Anodes protect the various metal components ( propeller, shaft, keel, rudder, engine) from deterioration caused by galvanic corrosion when your boat’s hull is submerged.

    Galvanic corrosion is the deterioration of metal, which occurs when dissimilar 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.

    Anodes deterioration must be monitored carefully and replaced every year when doing the antifouling/launching or when the anode is 75% dissolved.

    The choice of anode depends of the nature of the water:
    Saltwater = Zinc Anodes
    Freshwater = Magnesium Anodes
    Brackish Water = Aluminium Anodes

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