Metal Guide

Al
Suitable for salt & fresh water
Mg
Suitable for fresh water
Zn
Suitable for salt water

Follow our colour coding for easy identification of metals.

How To Fit Shaft AnodesHow To Fit Shaft Anodes

Magnesium Ball Shaft Anodes

Golf ball shaped shaft anodes that sacrifice themselves, protecting your shaft - this is where the phrase 'sacrificial anodes' comes from! The magnesium shaft anodes are typically attached to the shaft of your boat using stainless steel bolts, as stainless steel is a non-corrosive alloy. 

Magnesium ball shaft anodes offer far greater protection in fresh water, where there is lower open circuit potential. Aluminium ball shaft anodes can also be used in fresh water, but the level of protection provided by magnesium anodes is far superior. Zinc ball shaft anodes should not be used in fresh water at all.

Why shop with Anode Outlet?

From aluminium anodes to zinc anodes, and of course magnesium anodes - we've been supplying a leading range of anodes for boats since 2009. Our leading range of anodes have been hand chosen by our highly experienced team who are here to help, so whether you require a shaft anode, hull anode, saildrive anode, or any other anode for that matter, do not hesitate to contact us. Call us on 01634 568 011 or email info@anodeoutlet.co.uk, and we'll come back to you as quickly as possible.