Five Oceans Zinc Alloy Rudder/Trim Tab Disc Anode, 3-1/2 inches (90mm)(Pair) -

Zinc anode for use in salt water. installation underwater protection by maintaining quality alloys, free from impurities like iron, which can compromise performance low-cost marine corrosion protection for boats, marine structures, and boat equipment from a specialized alloy based on the Military Alloy Specification using only high purity metals Rudder/Trim Tab AnodesFIVE , 40 Years Developing High-Quality Marine & Outdoor Products