The Hayward DEX2400Z5 Outlet Elbow O-Ring is a crucial component designed to ensure a secure and leak-proof connection in HVAC systems. With an inside diameter of 2-3/16" and a thickness of 3/32" , this O-ring is engineered to fit precisely within outlet elbow connections, forming a reliable seal that prevents leaks and maintains system efficiency. This O-ring is used primarily in Hayward HVAC equipment, where it is employed to seal connections between pipes and elbows in various cooling and heating systems. By providing a robust barrier against leakage, the Hayward DEX2400Z5 helps to maintain optimal pressure within the system, thereby enhancing its overall performance and reliability.