Gecko Waterlab Probe
This is a factory direct replacement for the Gecko Waterlab Probe
Hands-free and durable probe with 4 years of reliable performance
Don’t replace one maintenance burden with another.
- Highly durable probe to limit replacement to once every four years;
- All-in-one highly precise sensors which monitors your water acidity (pH), temperature and sanitation (ORP);
- Minimize calibration to once through a four-year lifespan.
Informational PDF’s:
25-0037-40 9960-400001
✅ Not Sure It Fits? Verify Before Ordering
Hot tub part compatibility can vary by spa brand, model, year, serial number, control system, and part revision.
To help us identify the correct replacement part, please send clear photos of:
- Your existing part label or sticker
- Your spa serial number sticker
- The equipment area or installation location (if accessible)
EZ Hot Tub Parts can help confirm fitment before you order and help reduce costly returns.
Frequently Asked Questions
Water acidity (pH), sanitizer level (ORP) and temperature, reported in the in.touch app.
Gecko rates the probe for about four years of use with minimal calibration.
The probe sits in the WaterLab sensing chamber and reports through an in.touch 3+ module. Starting from scratch? The WaterLab kit includes all three.
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