The Hayward SPX0704HA O-Ring Teflon Shaft Seal is a crucial component for multiport spring valves, which are typically used in pool filtration systems. This high-quality O-ring forms a seal between the shaft and the valve body, ensuring that water flows smoothly through the system with no leaks. The seal is made of robust Teflon material that is resistant to chemical damage and high t... https://www.usapoolshop.com/spx0704ha-hayward-o-ring-teflon-shaft-seal