Neptune Systems Lab Grade ORP Probe (PRBORP) Canister Filter Media Double Junction ORP probes will

Double Junction ORP probes will hold calibration longer than lab grade probes

fresh egg (4%)

Carrier Weight - 4

Fructooligosaccharide

Reduces fish loss

Neptune Systems Lab Grade ORP Probe (PRBORP) Canister Filter Media Double Junction ORP probes willLab Grade ORP Probes are accurate and long lasting, and designed specifically for Neptune Systems Apex Controllers. Lab Grade Probes tend to last longer, give more accurate results, stay calibrated longer, and need replaced less frequently than standard grade probes. ORP is the oxidation reduction potential. This product will not function stand alone; it requires a Neptune Systems Apex Controller.