Advantages are:
- Increased life of rudders, shafts, struts and propellers as well as any other underwater parts affected by electrolysis
- Anodes are light, sturdy and compact for easy shipping, storage and installation
- Anodes, reference cells and automatic control systems maintain just the right amount of protection for underwater hulls and fittings, unlike standard zinc anodes, which can’t adjust to changes in salinity or compensate for extreme paint loss
- Automatic control equipment ensures reliable, simple operation
- Optimum documented corrosion protection at minimum overall cost
- Only one installation required for the life of the vessel or structure
- Increased dry-dock interval
- Approved by all classification societies for all types of vessels.
Very good and interesting info