Hayward EASY-CHEM-SRXG automatic ORP controller
Hayward EASY-CHEM-SRXG automatic ORP controller subject to supplier availability.
Estimated delivery time: 3 to 7 business days
Description
Description
Hayward Easy Chem – ORP Controller/Doser (Ref. EASY-CHEM-SRXG)
The Hayward Easy Chem EASY-CHEM-SRXG is an automatic ORP controller that ensures the water's chemical balance through a highly reliable peristaltic pump. Designed for pools of up to 130 m³, it combines precision, ease of use, and a refreshed design aligned with the Hayward 2025 range.
It features proportional dosing, one-point calibration, a configurable overdosing alarm, and IP55 protection. Its original Hayward Santoprene® tube is compatible with all acid concentrations (sulfuric, hydrochloric, and multi-acid), ensuring a long service life.
Accessories included in the box: Injection valve fitting, crystal PVC suction tube, polyethylene delivery tube, connection collars (2), foot filter, FPM lip valve, PSS3 probe holder, mounting support kit, ORP probe, 465 mV buffer solution, yellow container, and peristaltic tube nuts.
The installation kit is included, and its compact design (111×185×110 mm) makes installation easy even in tight spaces. Replacing the Santoprene tube each season is recommended to maintain optimum performance.
The Easy Chem range offers versions for pH and ORP control, as well as combined dual models, enabling complete automation of chemical treatment. All models feature precise peristaltic pumps, easy-to-read displays, and programmable alarms for safe and efficient management.


| Specifications | Easy Chem pH | Easy Chem ORP | Easy Chem ORP Pilot | Easy Chem Double pH+ORP | Easy Chem Double Pilot |
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| Reference | EASY-CHEM-SPH | EASY-CHEM-SRXG | EASY-CHEM-SRXGS | EASY-CH-DPHRXG | EASY-CH-DPHRXGS |
| Controlled parameters | pH | ORP | ORP via Socket | pH and ORP | pH and ORP via Socket |
| Pool volume | Indoor 5–130 m³ / Outdoor 5–110 m³ | Indoor 5–130 m³ / Outdoor 5–110 m³ | Indoor 5–130 m³ / Outdoor 5–110 m³ | Indoor 5–130 m³ / Outdoor 5–110 m³ | Indoor 5–130 m³ / Outdoor 5–110 m³ |
| Flow rate | 1.5 L/h | 1.5 L/h | 1.5 L/h | 1.5 L/h | 1.5 L/h |
| Maximum pressure | 1.5 bar | 1.5 bar | 1.5 bar | 1.5 bar | 1.5 bar |
| Power supply | 230 V AC 50/60 Hz | 230 V AC 50/60 Hz | 230 V AC 50/60 Hz | 230 V AC 50/60 Hz | 230 V AC 50/60 Hz |
| Pump type | Peristaltic | Peristaltic | Socket | Peristaltic (2) | Peristaltic + Socket |
| Injection mode | Proportional dosing | Proportional dosing | On/Off dosing | On/Off, timed, proportional | On/Off, timed, proportional |
| ON/OFF switch | Yes | Yes | Yes | Yes | Yes |
| Calibration | 1 point | 1 point | 1 point | 2 points (4 and 7), 1 point, by reference | 2 points (4 and 7), 1 point, by reference |
| Measurement range | 3.8–8.2 pH | 400–999 mV | 400–999 mV | 0–14 pH / 0–999 mV | 0–14 pH / 0–999 mV |
| Accuracy | ±0.1 pH | ±10 mV | ±10 mV | ±0.02 pH / ±3 mV | ±0.02 pH / ±3 mV |
| Operating temperature | 10–50 °C | 10–50 °C | 10–50 °C | 10–50 °C | 10–50 °C |
| Display | 7-digit LED display | 7-digit LED display | 7-digit LED display | 2-line × 16-character alphanumeric display | 2-line × 16-character alphanumeric display |
| Languages | None | None | None | EN / FR / IT / ES / DE | EN / FR / IT / ES / DE |
| Protection | IP55 | IP55 | IP55 | IP55 | IP55 |
| Connectivity | No | No | No | No | No |
| Insulation measurement | Yes, electronically | Yes, electronically | Yes, electronically | Yes, electronically | Yes, electronically |
| Overdosing alarm | Yes, configurable (activated for 120 min.) | Yes, configurable (activated for 120 min.) | Yes, configurable (activated for 120 min.) | Yes, configurable (activated for 120 min.) | Yes, configurable (activated for 120 min.) |
| Out-of-range value alarm | Yes, according to the measurement range | Yes, according to the measurement range | Yes, configurable (enabled) | Yes, configurable (enabled) | Yes, configurable (enabled) |
| Tube type | Santoprene® Hayward compatible with all acids | Santoprene® Hayward compatible with all acids | Santoprene® Hayward compatible with all acids | Santoprene® Hayward compatible with all acids | Santoprene® Hayward compatible with all acids |
| Probe | Double plastic pH junction | Double plastic Gold ORP junction | Double plastic pH junction / Double plastic Gold ORP junction | Double plastic pH junction / Double plastic Gold ORP junction | Double plastic pH junction / Double plastic Gold ORP junction |
| Temperature probe | – | – | – | Included | Included |
| Auxiliary relay | – | – | – | 1 pH + 1 ORP + 1 alarm | 1 pH + 1 ORP + 1 alarm |
| Dimensions (W×H×D) | 111×185×110 | 111×185×110 | 111×185×110 | 196×234×102 | 196×234×102 |
| Weight | 0.6 kg | 0.6 kg | 0.5 kg | 3.0 kg | 2.9 kg |
| Recommendation | Replace the Santoprene® tube every season | ||||
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