These anodes are made with an aluminum alloy which is specially formulated for marine anode use. They last longer than zinc anodes and, utilizing a less toxic activator, are safer for the environment.

Installing a rudder anode or trim tab anode will help prevent those parts from corroding.
Flat surfaces are most ideal for the installation of these anodes.
All Sea Shield aluminum anodes conform to Mil Spec MIL-A-24779 for maximum protection.

Affords protection in brackish as well as salt water
More economical than zinc anodes
Less than half the weight of comparable zinc anodes
Designed by divers, for divers
Captive stainless steel Allen Head fastener for easiest underwater installation - no slot for the driver to slip out of
Nut is encapsulated to prevent loss
Lock washers prevent loosening under vibration
Made in California, USA