The following Mil-Spec magnesium anodes are designed to provide superior corrosion protection for Honda outboards operating in fresh water only. They are the strongest anodes available and should not be used in salt or brackish water.
Fresh Water Use Only
06411-ZV5-000M Honda 30-50 HP Outboard Small Bar Magnesium Anode
06411-ZW1-000M Honda 75-225 HP Outboard Large Bar Magnesium Anode