CM273125GA - Anode With Strap Aluminium 152 x 76 x 35mm Martyr - Block Anode With Strap Aluminium CM273125GA 152 x 76 x 35mm Weld-on strap. Bolt holes can be added on straps as required. Product Information: For use in salt water and brackish water Performs better, protects longer than Zinc Alloy is... MSRP: Was: Now: $42.31 Add to Cart