Tecnoseal 80 x 100mm disc rudder or hull anode with a cut out insert. MG Duff nearest part number is a ZD56.
Please note this is a Zinc anode for saltwater. An Aluminium anode should be used for brackish water use. A Magnesium version should be used for freshwater. Anodes should not be mixed on any installation.
If your anode is worn away by 33% or more, it is advisable to change it as more of its surface area has been worn away and the remaining anode will wear away much quicker.
Specification: 100 x 80mm with backing plate.
