This 30mm magnesium shaft anode is manufactured in a classic golf ball shape. Suitable for fresh water use, the magnesium ball shaft anode offers outstanding cathodic protection, preventing your vessel's shaft from corroding.
MG Duff's magnesium anodes are renowned for their superior quality. The anodes offer excellent cathodic protection and help control and prevent the corrosion of metals aboard your boat.
Also available in:
Aluminium - ASA120.
Zinc - ZSA120.
MG Duff MSA Shaft Anode Size Guide:
- If you wish to navigate to a different anode in the list, simply click on the part number.
| Part Number | Shaft Diameter (mm) | Outer Diameter (mm) | Length (mm) | Weight (kg) |
| MSA88 | 22 | 54 | 53 | 0.15 |
| MSA98 | 25 | 56 | 55 | 0.17 |
| MSA100 | 25.4 | 55 | 55 | 0.15 |
| MSA120 | 30 | 61 | 61 | 0.19 |
| MSA125 | 32 | 61 | 60 | 0.20 |
| MSA150 | 34.8 | 67 | 60 | 0.25 |
Useful Links:
Explore our full range of shaft anodes.
Blog: How to fit shaft anodes.
Blog: How often should a sacrificial anode be replaced on a boat?
