MG Duff Magnesium Engine Anode Volvo Penta Duo Prop Ring (CM851983M) MGDUFF CMV290KITM, Volvo Penta 290 Anode Kit Duff CMV18M Volvo Penta 280 290E Magnesium Ring Anode 4Boats Volvo Penta Anode kit 290 serie, Magnesium MG Duff Zinc Volvo Penta SD Series Ring Anode 1.48kg Pirates Cave. MG Duff CMV18M magnesium large ring anode for Volvo Penta 280 290E single drop sterndrive series, providing sacrificial corrosion protection for freshwater applications. Material: Magnesium optimised for freshwater use Part number: CMV18M Compatibility: Volvo Penta 280 290E single drop sterndrives and outdrives Design: Large ring sacrificial anode for drop in replacement Fitment: Suits sterndrives, outdrives and adjacent metalwork Manufacturer: MG Duff Purpose: Prevents galvanic corrosion by sacrificial protection