Complete Replacement Set for Hand Pump Model 75 - This value pack includes a complete piston and a leather seal designed specifically for Hand Pump Model 75, providing everything needed for effective maintenance and optimal operation. - Optimal fit for pumps with a 75 mm cylinder grip; the leather seal has an inner diameter of 52 mm, an outer diameter of 80 mm, and a height of 20 mm, delivering a precise seal to improve pump efficiency. - Easy installation: simply remove the old components, replace with the new seal, and your pump will be ready to move water efficiently again. - Robust and reliable materials: cast iron construction and treated cowhide leather ensure excellent sealing performance and resistance to wear even with prolonged exposure to water. Use scenarios - Restoring an older garden hand pump to restore steady, reliable water flow for irrigation. - Regular maintenance in a high-usage workshop or outdoor pump to prevent leaks and maintain good suction. - Replacing worn seals on a well or rainwater collection pump to ensure durable, leak-free operation.