For over 40 years Sea Shield Marine has been the trusted name for Service Divers, Pleasure Craft Owners, and Cathodic Protection Professionals all over the World that demand High-Quality, Durable, and Reliable Zinc Anodes. Our experienced teams dedication to quality and proprietary manufacturing assures you’ll always receive the Worlds Best Zinc Anodes – but it’s our unmatched ingenuity that has allowed us to make our mark as a Cathodic Protection Industry leader. All Sea Shield Marine Anodes are made to MIL-SPEC standards MIL-A-18001 Zinc Anodes and MIL-A-24779 Aluminum Anodes, are pressure die cast, and are engineered for longevity. We manufacture and/or carry Zinc Anodes, Aluminum Anodes, and Magnesium Anodes for boats, yachts, commercial vessels, pleasure craft, or any of your cathodic protection needs – Insist on Quality, Insist on Sea Shield Marine! Proudly Made in the USA and Veteran-Owned.