This bolt-on hull anode is a must-have for any pleasurecraft owner looking to extend their boat's life. Made of high-quality zinc alloy, it provides superior protection against corrosion and ensures your boat stays afloat for longer. The Martyr brand and MZ404 manufacturer part number guarantee you're getting a top-quality product that will meet your expectations. Whether you're a seasoned boater or just starting out, this anode is an essential component for your boat's maintenance. It's easy to install and will provide a long-lasting, reliable solution for your corrosion needs. Don't let your boat's life be cut short - invest in this Martyr CMMZ404 anode today.