Neptune Systems Double Junction ORP Probe

ORP PROBE

Replace your ORP probe or add another for another tank

Buy this probe if you are:

Replacing a worn out ORP probe

Adding another tank to yoursystem and purchased a PM1 to do so.

Double Junction probes will last longer- about twice a long.  A Single Junction Lab grade should be replaced in 12 months and a Double Junction Lab Grade should be replaced in 24months.