Harwil Q12DS Cal Spa Flow Switch (Q12DS/CAL SPA) bypassvalves this trap lid helps restore

this trap lid helps restore secure closure and supports a more dependable repair overall

Using the wrong extension can create panel issues that look like control failures when the real problem is the cable

Helps restore dependable control over supported operating modes

Using the correct Waterway body helps restore the proper fit of the surrounding valve components and supports a more complete repair

Harwil Q12DS Cal Spa Flow Switch (Q12DS/CAL SPA) bypassvalves this trap lid helps restoreA flow switch helps confirm water movement in a compatible spa system so related equipment can operate under the correct conditions, and this Harwil Q12DS version is intended for Cal Spa applications using the Q12DS CAL SPA reference. Flow sensing is especially important in spa systems where heaters and controls depend on dependable circulation confirmation. This switch has practical value because it is matched to a specific application family,