Side-Power Thruster Anode SP125T, 285TC, SE120, SE150, SP220, 300HYD, SH160 Product Code: mtsp201180a

Dome-shaped Aluminium side power anodes that fit onto the end of the propeller,  held in place by a bolt, when the anode is fitted please use a suitable adhesive such as Loctite. Dome side anodes are suitable for boats used in all types of water giving superior support compared to zinc anodes in fresh or brackish water, but still giving great protection in salt water.

• To suit SP125T, 285TC, SE120, SE150, SP220/3
• Weight 0.45kg
• Bolt included
• Thrusters have either a 250mm or 300mm tunnel diameter with 4-bladed composite propellers

Anodes are installed on boats for the purpose of sacrificial protection, also known as cathodic protection. Boats are made of various metals, such as steel, aluminium, and bronze, which can undergo galvanic corrosion when immersed in an electrolyte like seawater. Galvanic corrosion occurs when two dissimilar metals are in electrical contact in the presence of an electrolyte, causing one metal (the less noble or more reactive metal)  to corrode rapidly while the other metal (the more noble or less reactive metal) remains protected. Anodes, typically made of metals like zinc or aluminium, are deliberately installed on the boat's hull and underwater fittings. So the anode "sacrifices" itself rather than let the sittings corrode.