Apex Double junction pH Probe

In stock


Replace your pH probe or add another for another tank, calcium reactor, etc.

Buy this probe if you are

  • Buying an Apex Lite (it does not include a pH probe).

  • Replacing a worn out pH probe (we recommend you replace your pH probe every 18 months).

  • Adding another tank to your system and purchased a PM1 to do so.

  • Want to have a back-up probe on hand.