Harwil Flow Switch Q12DSMSC #1 Flow Switch Since the mid 1980’s the Harwil Q-12 flow switch has been used by some of the largest companies in the Pool & Spa and fluid control industries. The Q-12 has several factory adjustable parameters that provide the flexibility to meet the requirements of almost any application. The Q-12 verifies fluid flow, typically in conjunction with another device. For example most of swimming pool salt chlorine generators use the Q-12 to verify sufficient flow before the generator is energized. In a spa or hot tub the Q-12 ensures sufficient flow to prevent the water heater from a meltdown. In a chiller the Q-12 prevents the system from freezing. At home the Q-12 turns on the water disinfection system when someone is getting a glass of water.
Additional Information
Inlet Size/Outlet Size | 1/2" MPT |
Amperage (Amps) | 0.50 |
Alternate Part Numbers
- 5-20-0025
- Q-12DS50/1.5/6M/NO/1 (Harwil)
- 34-0217 (HydroQuip)