| Brand | Hayward |
|---|---|
| Test/Treatment Parameter | Chlorine |
| Water Type | Fresh |
| Product | Testing Kit |
| MPN | GLX-PROBE-ORP |
| Suitable For | Swimming Pools, Hot Tubs |
Check the listing for details. ORIGINAL Hayward PRO25-2 ORP Probe with 24" Cable, NEW. Condition: New. Listed at 350.00 USD. This probe measures the Oxidation-Reduction Potential (ORP) of the water, which indicates chlorine activity and sanitizer effectiveness. Designed for use with Hayward CAT or HCC automated chemical controllers to maintain water balance in pools and spas, ensuring water safety and clarity.