Crafted from anodized aluminum, this water pump pulley is positioned close to the O - Rings seat. It features dual diameters of 70mm and 90mm, enabling you to easily adjust the pulley ratio for faster or slower water pumping. Specifically designed to fit 50mm diameter axles, it offers a great solution for your water - pumping needs.

Using this water pump pulley is quite easy. First, make sure your axle has a diameter of 50mm, as this pulley is specifically designed for it. Then, position it near the O - Rings seat as described. To change the water pumping speed, you can adjust the pulley ratio according to your needs. When it comes to maintenance, keep it clean and dry. Check for any signs of wear and tear regularly. If you notice any damage, replace it promptly to ensure efficient water pumping.