Crafted for excellence and designed for durability, the SL-4000-ALU Streamline Shaft Anode is the perfect solution to protect your shaft against corrosion. This superior aluminum shaft anode boasts a diameter of 4 inches and a length of 4 1/4 inches, with an outside diameter measuring 5 1/4 inches. Weighing at a mere 3.8 pounds, this anode is not only lightweight but also incredibly effective.

One of the standout features of the SL-4000-ALU is its easy size verification both inside and outside, ensuring a seamless fit for your specific needs. Installation is a breeze with deep slotted stainless steel machine screws that provide maximum torque for a secure attachment. Say goodbye to worries about screws falling out, thanks to the innovative O-rings that keep everything in place.

Whether you're a seasoned boater or just starting out, investing in the SL-4000-ALU Streamline Shaft Anode is a surefire way to prolong the life of your shaft and ensure smooth sailing on the water. Trust in the quality craftsmanship and innovative design of this anode to safeguard your vessel from the damaging effects of corrosion. Upgrade your boating experience today with the SL-4000-ALU Streamline Shaft Anode - the ultimate protection for your shaft.