The Hayward SPX0715Z1 Cover O-Ring is a crucial component that ensures a tight seal in HVAC and pool filtration systems, reducing leaks and preserving peak performance. It is a circular is composed of strong rubber that is flexible and resistant to abrasion. The O-ring's black color indicates that it may be used with a variety of devices and blends in well with a range of mechanical s... https://www.usapoolshop.com/spx0715z1-hayward-cover-o-ring