This common flow switch is
Identical to and replaces: |
HRWQ12DS1 |
|
Q12DS1.54SNO1 |
|
Q12DS501.54SNO1 |
|
608073 |
|
6656-CAL |
|
Q12DSMSC |
|
21509 |
1/2" Threads are standard on most spas, and you can often bushing down to 1/2" if your spa uses a different size.
This flow switch will work in all Jacuzzi SMC control systems ( Blue control box built from approx 1989 to 1994).