Duff MGCM459 Aluminium Vetus Bow Thruster Anode | 4BoatsAluminium anode, part MGCM459, for Vetus bow thrusters type 23 50 80. Designed for salt and brackish water to protect thruster housings from galvanic corrosion. Part number: MGCM459 Material: aluminium Compatible with Vetus bow thruster types 23, 50 and 80 For salt and brackish water use only Protects against galvanic corrosion on thruster casings OEM style replacement for routine maintenance Inspect regularly and replace when more than 50% worn