V-18M Volvo Penta Outdrive Ring Magnesium Anode
Fresh Water Use Only
Base Diameter: 4-3/4" Hole Distance: 3-1/8" center-to-center Weight: 0.6 lbs
Magnesium is the most active metal on the Galvanic scale and intended FOR USE IN FRESH WATER ONLY
Base Diameter: 4-3/4"