Always check propeller clearance after installing new trim tab anodes. Aluminum for salt and brackish water, magnesium for fresh water, zinc for salt water.
| Brand | Martyr Anodes |
| Case | 30 , 30 , 30 |
| Description | SX-A/ DPS Transom Bar , SX-A/ DPS Transom Bar , SX-A/ DPS Transom Bar |
| Material | Zinc , Zinc , Zinc |