Standard Grade ORP Probe - PRBORPS - Neptune Systems

Standard Grade ORP Probe - PRBORPS are accurate and long-lasting, and designed specifically for Neptune Systems Apex Controllers. 

ORP is the oxidation reduction potential.

Buy this probe if you are:

• You measure ORP in your aquarium with an Apex System or a PM1 module
• Replacing a worn out ORP probe (we recommend you replace your Standard Grade ORP probe every 12 months).
• Adding another tank to your system, want to measure ORP in it, and purchased a PM1 to do so.
• Want to have a back-up probe on hand