Waterway 600-7300 Check Valve Swing Valve and Lid Kit is also known as the Check Valve Lock Ring Lid or the Swing Check Valve Lid and Flapper Assembly. This kit already includes a clear round lid, a lid O-ring, and a spring-loaded Diverter assembly. This item is suitable for both straight and 90-degree Waterway check valves and can also fit through a 1.5-inch and 2-inch TruSeal check valve sizes. The external Lock Ring is not included.