Harwil Q12DS Cal Spa Flow Switch (Q12DS/CAL SPA) pumpmotors the whole assembly can feel

the whole assembly can feel less secure than it should

The Raypak 206A common refractory kit is designed for compatible heater applications where the supported refractory components need replacement

A terminal block is useful because it helps keep wiring cleaner

Helps regulate air flow in compatible spa systems

Matching the correct 5 inch indoor draft hood helps preserve proper fit and cleaner vent-related service results

Harwil Q12DS Cal Spa Flow Switch (Q12DS/CAL SPA) pumpmotors the whole assembly can feelA 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,