Changing and selecting the right pH probe for the Salt Relax Pro system.

Contact:
I have a Salt Relax Pro system. How often do I need to replace the pH probe?
And which one is the right one?

Advisor:
Hello, one moment.
The lifespan generally varies between 2 and 3 years.

Contact:
Which one is the right probe?

Advisor:
Here is the right probe for your system.