Pentair Compool ESO-2 Emergency Shut Off PCB (MODESO) covervalet and this Magic Plastics version

and this Magic Plastics version combines a 2 inch pump union style with a slip by female pipe thread configuration using the 0550-20 reference

Replacement is often recommended when the original gaskets are flattened

6" suction trap cover for compatible Pentair assemblies

Pentair FSH/FNS/Quad Nut (194997Z) addresses a specific service point while preserving compatibility with the intended Pentair application

Pentair Compool ESO-2 Emergency Shut Off PCB (MODESO) covervalet and this Magic Plastics versionThe clamp knob provides the tightening point needed to secure compatible Challenger and Waterfall pump clamp assemblies. This replacement helps restore proper serviceability when the original knob is stripped, cracked, or missing. A fresh knob can make routine access easier while helping the pump housing clamp maintain a more dependable hold. Choose this replacement when you want a clean, part specific repair rather than forcing a workaround that can