B56 - MG Duff B56 Disc Anode Backing Pad

A backing pad for ZD56 and AD56 bolt on anodes. The backing pad is designed to stop the back of the anode from wasting away and potentially causing anode fixings to come loose. Backing pads also provide a barrier, helping to protect GRP hulls from alkalinity that can be produced as part of the cathodic protection process.