Welcome to Z Guard Zinc Anodes, Aluminium Anodes, Magnesium Anodes,Sacrificial Anodes Last Updated:1st July 2010. When you buy Aluminium anodes, Zinc Anodes, Magnesium Anodes from Z-Guard you buy direct from the manufacturer. Z-Guard anodes are produced at our own factory in the South of England since 1977. The alloy from which the zinc anodes are produced is in accordance with the US Military Specification No 18001K, Aluminium anodes to the recommended Al/Zn/In type and magnesium anodes to a high purity alloy. A-guard.co.uk~Site InfoWhoisTrace RouteRBL Check