Martyr AN250 Zinc Beneteau Anode 50mmThis 50mm zinc anode is designed specifically for Beneteau propeller systems, offering strong protection against corrosion in saltwater environments. It fits directly onto the propeller nut area, helping protect both the propeller and shaft from galvanic damage. Made from marine grade zinc, it slowly corrodes instead of your expensive components, extending the life of your drivetrain. Its a direct replacement part, making installation quick and easy.