Product Details
- Brand: Hayward
- Product type: Replacement pH probe
- Part number: GLX-PROBE-PH / GLXPROBEPH
- Primary use: Pool-water pH monitoring
- Compatible system type: Hayward Sense and Dispense chemistry automation
- Related sensor: ORP probe is separate when required
Compatibility and Buyer Check
The GLX-PROBE-PH is designed for Hayward Sense and Dispense systems and compatible Hayward chemistry automation controllers that require part number GLX-PROBE-PH or GLXPROBEPH.
Before ordering, check the part number on your current probe or in your Hayward system manual. If your system needs the chlorine/ORP sensor instead of the pH sensor, review the Hayward GLX-PROBE-ORP replacement probe.
This probe may be used with the Hayward Goldline HL-CHEM Sense and Dispense system when that system requires a replacement pH sensor. Always confirm compatibility by model number instead of relying only on the product image.
What This pH Probe Does
The pH probe measures the acidity level of your pool water and sends that reading to the compatible Hayward controller. The controller uses that reading as part of the chemical automation process.
A working pH probe can help reduce inaccurate readings and unnecessary chemical adjustments. It does not add chemicals by itself and should be used only with a properly working controller, feed system, and balanced pool water.
Before You Order
Check these details before purchasing:
- Confirm the part number is GLX-PROBE-PH before ordering.
- Make sure you need a pH probe, not an ORP probe.
- Check that the probe connector and cable style match your existing Hayward Sense and Dispense setup.
- Verify compatibility with your Hayward chemistry automation system.
- Follow Hayward calibration instructions after installation.
- Replace the probe only after cleaning, calibration, and basic troubleshooting do not fix unstable readings.
- If your system is showing a flow-related error, check whether a Hayward GLX-FLO flow switch is the part you actually need.
For general saltwater pool equipment guidance, review our salt chlorine generator guide before replacing multiple system parts.
Installation and Setup Notes
Turn off pool equipment and power to the controller before removing the old probe. Install the new probe in the same pH probe position on the compatible Hayward chemistry cell or flow cell.
Avoid touching, scraping, or drying out the probe tip unless the manufacturer instructions allow it. After installation, follow the Hayward controller manual for calibration before relying on the displayed pH reading. Let water circulate and allow the reading to stabilize before making chemical changes.
Maintenance Tips
To help the probe read correctly:
- Keep the probe tip clean and properly stored according to the manufacturer instructions.
- Remove buildup gently using approved probe-cleaning methods.
- Recalibrate the probe according to the controller manual.
- Maintain proper water balance and steady flow through the system.
- Replace the probe if readings continue to drift after cleaning and calibration.
- Package contents: Verify before publishing
- Installation: Follow Hayward controller manual and calibration instructions










