Duff ZD78BKIT Zinc Bolt-On Anode | 4Boats

Bolt-on zinc anode kit to protect submerged metalwork from galvanic corrosion in salt water.

Zinc is for salt water only; use aluminum in brackish water and magnesium in fresh water.

• Material: zinc for sacrificial cathodic protection
• For salt water use only
• Fixing hole to suit stud size M10 (≈3/8 in)
• Bolt-on design for easy fitting to hulls, rudders, trim tabs and outdrives
• Model / MPN: ZD78BKIT
• Protects exposed underwater metalwork from galvanic corrosion

Check fitment against existing studs and replace anodes regularly to maintain effective corrosion protection. See our anode selection guide for help choosing the correct alloy and size.

Bolt-on zinc anode kit to protect submerged metalwork from galvanic corrosion in salt water.

Zinc is for salt water only; use aluminum in brackish water and magnesium in fresh water.

• Material: zinc for sacrificial cathodic protection
• For salt water use only
• Fixing hole to suit stud size M10 (≈3/8 in)
• Bolt-on design for easy fitting to hulls, rudders, trim tabs and outdrives
• Model / MPN: ZD78BKIT
• Protects exposed underwater metalwork from galvanic corrosion

Check fitment against existing studs and replace anodes regularly to maintain effective corrosion protection. See our anode selection guide for help choosing the correct alloy and size.