Hayward Filter Body Assy (RCX7801) swimline An impeller like this is

An impeller like this is useful because it is the component responsible for driving water through the pump

A diverter like this is useful because it is the internal component that redirects water inside the valve body

and a deteriorated O-ring can contribute to leaks

The Wide Ultima fit gives this part its practical value because the volute back needs to match the original pump geometry closely if the final repair is going to feel correct

Hayward Filter Body Assy (RCX7801) swimline An impeller like this isCleaner downtime often comes from a single worn part, which makes this Filter Body Assy a valuable replacement for keeping Hayward automatic pool cleaners moving properly. Use it to service compatible Hayward cleaner models, improve part to part function, and help the cleaner return to reliable operation across pool surfaces. Use this part when servicing compatible Hayward systems and compare the existing component, equipment model, and plumbing