Zinc: For use in salt water
Aluminum: For use in brackish water
Magnesium: For use in fresh water
| Brand | Martyr Anodes |
| _Case | 100 |
| _Case | 100 |
| _Case | 100 |
| _Description | Anode Block |
| _Description | Anode Block |
| _Description | Anode Block |
| _Material | Aluminum |
| _Material | Aluminum |
| _Material | Aluminum |
| Shipping Details | |
| Weight: | 0.16 lb |
| Length: | 1.6 in |
| Height: | 0.9 in |
| Width: | 1.6 in |