B & S Anodes BSM2SL 2" Streamline Shaft Zinc Collar Anode

The B & S Anodes BSM2SL is a 2-inch streamline shaft zinc anode designed to provide cathodic protection for propeller shafts on marine vessels operating in saltwater environments. This hand-poured zinc anode is made in the USA on Long Island and meets Federal Specification Mil-A-18001K, ensuring high-quality corrosion protection for your boat's critical underwater components.

Key Features:

• Streamline collar design with oval shape minimizes turbulence and drag
• Includes stainless steel allen head bolts for secure mounting
• Hand-poured construction provides higher porosity for more even and efficient erosion compared to die-cast anodes
• Two-piece collar design clamps around 2-inch diameter propeller shafts
• Protects vital boat parts like propellers and shafts from saltwater corrosion

This sacrificial zinc anode corrodes in place of more expensive metal components such as propellers, struts, rudders, and bearings, preventing costly galvanic corrosion damage. The BSM2SL replaces Martyr CMX09 and Camp X9 anodes. Designed specifically for saltwater applications, this anode should be replaced when approximately 50% of the material has eroded to maintain optimal protection.