I.D. Your Valve
Some water treatments units have a name to identify the manufacturer and some do not. Below is pictures of the most common valve used with no identifying name.
![](https://watersoftenersuperstore.com/wp-content/uploads/2015/04/Autotrol-Valve-155.jpg)
Autotrol Timer 155
![Autotrol 255 Valve](https://watersoftenersuperstore.com/wp-content/uploads/2015/04/Autotrol-255-Valve-Copy.jpg)
Autotrol Timer 255
![Autotrol 255 Valve](https://watersoftenersuperstore.com/wp-content/uploads/2024/05/Fleck-5600-Timer-Valve.jpg)
Fleck 5600 Timer Valve
The 5600 timer has pins that can be set for 1,2,3,4,6 & 12 days between regenerations.
![Autotrol 255 Valve](https://watersoftenersuperstore.com/wp-content/uploads/2024/05/Fleck_5600_Meter.png)
Fleck 5600 Meter
The 5600 meter has a cable coming from the back that attaches to the dome in the rear of the valve.