A zinc shaft anode that is manufactured in a classic golf ball shape. Suitable for salt water use, the zinc ball shaft anode offers outstanding cathodic protection, preventing your vessel's shaft from corroding.
The zinc anode is manufactured by MG Duff, a brand whose anodes are highly regarded for their superior quality and high zinc content.
Also available in:
Aluminium - ASA175.
MG Duff ZSA Shaft Anode Size Guide:
- Please refer to the diagram in the product photos for measurements.
- 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) |
| ZSA75 | 19 | 52 | 51 | 0.36 |
| ZSA88 | 22 | 54 | 53 | 0.41 |
| ZSA98 | 25 | 56 | 55 | 0.49 |
| ZSA100 | 25.4 | 55 | 55 | 0.40 |
| ZSA112 | 29 | 60 | 57 | 0.52 |
| ZSA120 | 30 | 61 | 61 | 0.55 |
| ZSA125 | 32 | 61 | 60 | 0.79 |
| ZSA138 | 34.8 | 67 | 60 | 0.67 |
| ZSA150 | 38 | 70 | 63 | 0.76 |
| ZSA155 | 40 | 82 | 73 | 1.2 |
| ZSA175 | 44 | 82 | 70 | 1.13 |
| ZSA178 | 45 | 82 | 73 | 1.14 |
| ZSA200 | 51 | 91 | 73 | 1.41 |
| ZSA225 | 57 | 108 | 95 | 2.76 |
| ZSA236 | 60 | 110 | 90 | 2.59 |
| ZSA250 | 63 | 108 | 95 | 2.35 |
| ZSA300 | 76 | 124 | 92 | 2.97 |
| ZSA350 | 89 | 145 | 96 | 4.10 |
| ZSA450 | 114 | 159 | 89 | 4.00 |
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?
Blog: Aluminium versus zinc anodes
