The Duff ZSA125 zinc shaft anode provides sacrificial corrosion protection with a compact, golf-ball-shaped design ideal for propeller shafts in marine environments.

• Outer diameter: 61.5 mm (2.42 in)
• Shaft bore: 28.6 mm (1 1/8 in)
• Material: high-purity zinc for effective saltwater protection
• Golf-ball shape for close-fit shaft contact and a flow-friendly profile
• Simple fit to shafts of the stated diameter; check shaft tolerance before fitting
• Regular replacement advised to maintain reliable electrochemical protection

Inspect anodes at each haul-out and replace when more than 50% worn or if excessive pitting is present to ensure continued shaft protection.