Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt waterCLAMP SHAFT ANODES - WITH SLOTTED SCREW (MARTYR ANODES)SKU: 6.28309E+11$17.79PriceQuantity*Add to CartFeatures Clamp insert ensures tight fit to shaft Stainless steel hardware and lock washers included Bolt retaining washers prevent the anode from falling off - easy installation underwater ID7/8"OD2.2"Length2-1/2"
){kind=link}