Pentair Challenger/Waterfall 1/4-18 Clamp Knob (175025Z) poolcovers This switch has practical value

This switch has practical value because it is associated with a recognizable Jacuzzi whirlpool bath application rather than serving only as a generic control component

Useful when the original flow cell is damaged or leaking

A union like this is useful because it gives the system a removable plumbing joint that can simplify maintenance

It is a practical addition for saltwater pools

Pentair Challenger/Waterfall 1/4-18 Clamp Knob (175025Z) poolcovers This switch has practical valueThe clamp knob is a small but essential service part for securing the trap or clamp area on compatible Challenger and Waterfall pump assemblies. If the original knob is stripped, cracked, or missing, the assembly may be difficult to tighten correctly. This Pentair 1 4 18 replacement knob helps restore a secure, serviceable connection without replacing larger pump components unnecessarily. Replacement clamp knob for select Challenger Waterfall pumps