For use in Salt and Brackish water.The MGD style of shaft anodes are known for their excellent quality, and are particularly suited to vessels with high shaft speeds.Using the integral core bar design that reduces waste, ensuring the shaft anode remains secure, the MGD range now incorporates socket head (allen bolt) stainless steel fixings with captive nuts to ensure maximum reliability. Available in a wide range of metric and imperial sizes, offering a direct fit for your propeller shaft