The MD77 magnesium bolt-on hull anode provides galvanic protection for boats and vessels as a sacrificial anode; designed for easy fit during routine maintenance.

• Magnesium composition for effective sacrificial protection in freshwater and low-salinity waters
• Bolt-on design for secure hull mounting (not for use as a shaft anode)
• 8" (200 mm) hole centres; for use with M10 studs
• Helps reduce corrosion on submerged metalwork
• Simple to install for regular maintenance

Buy genuine Duff MD77 anodes to protect your vessel's underwater metalwork and extend service life. For seawater or mixed-salinity applications, check compatibility or consult a specialist.