The Hayward SPX0710XD Valve Seat Gasket is a high-quality gasket designed to provide dependable sealing in valve assemblies. Because it is composed of sturdy black material, this gasket will last a long time and resist deterioration. It fits certain valve models that demand these measurements because of its 5-5/16" outside diameter and 3/4" interior diameter. The gasket's five-spoke d... https://www.usapoolshop.com/spx0710xd-hayward-valve-seat-gasket-5-spoke