Aluminum suitable for salt and brackish water. Magnesium for fresh water only.STREAMLINED SHAFT ANODES WITH ALLEN SCREW (SEACHOICE)SKU: 7.1925E+11$7.95PriceQuantity*Add to CartFeatures High-quality, cadmium-free anodes Higher protection than zinc 2.5 Times lighter than zinc Corrodes less than zinc Ideal for aluminum hulls Installation hardware included ID7/8"MaterialAluminumModelX2
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