2" L x 0.25" D 1/8" NPT Zinc Pencil Anode without Plug (E-00-ZINC) by Camp Company®. Marine anodes conform to these MIL-SPEC standards: Zinc Anodes: Mil-A-18001, Aluminum Anodes: Mil-A-24779. Anodes subject to cavitation will decay more rapidly. Anodes should be inspected frequently to assure proper functionality.
