Pentair Sta-Rite Pump Pad Base (17350-0008) topsideparts A nut like this is

A nut like this is useful because it helps clamp the related fitting in place

Corona discharge ozonator for compatible DEL Ozone SpaEclipse Gen 2 applications

helping transfer heat into the water while matching the intended system configuration

or a cleaner that stops advancing properly

and this Jacuzzi seal plate is designed for compatible L

Pentair Sta-Rite Pump Pad Base (17350-0008) topsideparts A nut like this isBuilt for Sta Rite pump installations, this pad base provides a stable foundation point for aligning and supporting the pump body in pool and spa equipment pads. The base is useful when the original support has cracked, shifted, or no longer holds the pump at the proper height. A secure mounting surface helps reduce vibration, keeps plumbing connections better aligned, and supports long term pump serviceability. Helps stabilize compatible Sta Rite