Zinc: For use in salt water
Aluminum: For use in brackish water
Magnesium: For use in fresh water
| Brand | Martyr Anodes |
| _Case | 20 |
| _Case | 20 |
| _Description | Transom Bar |
| _Description | Transom Bar |
| _Material | Zinc |
| _Material | Zinc |
| Shipping Details | |
| Weight: | 1.14 lb |
| Length: | 4.0 in |
| Height: | 2.0 in |
| Width: | 4.0 in |