Aluminium Anode kit made by Tecnoseal, one of the worlds leading suppliers of sacrificial anodes for cathodic protection in the leisure boat market.
The kit for the Mercruiser Bravo 2-3 sterndrive comprises of a cavitation plate anode, 2 collar anodes for trim and a plate anode for engine, along with the required fixings, ie the kit contains all the factory fitted anodes.
Aluminium anodes are suitable for salt and brackish water situations and are recommended by many outdrive manufacturers, please check your manufacturers recommendations