Mercury - Magnesium Anode Kit Bravo II / Bravo III Series Freshwater Protection 888760Q03. OverviewIf you spend your days cruising lakes or drifting quiet freshwater channels, you know how much depends on the hidden pieces of your sterndrive. It's easy to forget about corrosion until it sneaks up on you, and by then the damage is already done. That's why a good anode kit feels like insurance you can touch - a small, simple layer of protection that keeps the rest of your drive healthy. The Mercur