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Sacrificial anode material is zinc for maximum cathodic protection in salt water.
DieCast Sea Shield Marine proprietary manufacturing process meets highest Mil-Spec standards to ensure longevity.
2-Deep slotted Stainless Steel Screws providing maximum torque.
High quality parts designed by divers to help with quick installation.
Allen Cap Screws Are Available Upon Request.
This 5" Streamline Collar Shaft Anode is made with zinc alloy which is specially designed for cathodic protection use in salt water. Streamline Collars are the best choice when it comes to propeller shaft protection and the oval shape of the collar anode minimizes turbulence and drag. Designed by divers for divers, these anodes conform to Mil-Spec MIL-A-18001 with precise sizing and maximum contact to the shaft, providing the worlds best protection.