Seachoice 95614 Diver'S Anode, Magnesium, Size 12" X 6" X 1" - 95614 - 50-95614F1
Magnesium for fresh water only. High-quality, cadmium-free anodesHigher protection than zinc2.5 Times lighter than zincCorrodes less than zincIdeal for aluminum hullsInstallation hardware included