Product Overview

The Hayward GLX-PROBE-PH is the genuine replacement pH probe for Hayward Sense and Dispense chemical automation. It sits in the system's flow cell and reports the pool's pH to the controller, which uses that reading to decide when to feed acid. Replace it when readings drift, become erratic, or no longer calibrate.

⚠️ Important Purchase Notice

pH probes are sensitive instruments. Keep the protective cap on and the tip wet until installation, and never let the sensing tip dry out. Installation and calibration should follow the Hayward manual for your system. Inspect the shipment upon arrival and report damage promptly.

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Ideal For

• Replacing a worn or failing pH probe on a Hayward Sense and Dispense system.
• Fixing pH readings that drift, jump around, or won't calibrate.
• Keeping a spare probe for routine chemical-automation service.

Key Features

• Genuine Hayward replacement, model GLX-PROBE-PH.
• Made for Hayward Sense and Dispense chemical automation.
• Labeled pH connector for a correct hookup at the controller.
• Built from durable parts and materials for long service life.

Benefits

• Restores accurate pH sensing so acid feed stays on target.
• Helps protect equipment and swimmer comfort by keeping water balanced.
• Replaces only the probe, not the whole controller.

Compatibility

Fits Hayward Sense and Dispense systems AQL-CHEM and AQL-CHEM-UPG, and Hayward salt chlorine generator models AQR-PRO-SD and HPC-4-ACT-RC. Confirm your system model and the part number GLX-PROBE-PH before ordering.

Installation or Upgrade Context

With the pump off, remove the old probe from the flow cell, install the new probe in the same port, and connect its lead to the pH input on the controller. Restart circulation, then calibrate the pH reading against a reliable test kit per the Hayward manual.

What’s Included

• One Hayward GLX-PROBE-PH pH probe

Specifications

Warranty

Covered by the manufacturer's warranty, subject to Hayward’s applicable terms. Contact Hayward for warranty claim instructions; Pool Supply Depot can provide proof of purchase.

Customer Q&A

How do I know my pH probe needs replacing?

Common signs are readings that drift, jump around, or won't calibrate against a test kit even after cleaning.

Does this work with my AQR-PRO-SD salt system?

Yes. The GLX-PROBE-PH is listed for AQR-PRO-SD and HPC-4-ACT-RC as well as Sense and Dispense AQL-CHEM and AQL-CHEM-UPG.

Do I need to calibrate after installing?

Yes. Calibrate the new probe against a reliable test kit following the Hayward manual for your system.