Pool water Liquid Test Kit OTO and pH Solution
Keep your pool water perfectly balanced with our Pool Water Liquid Test Kit!
Water Test Liquid Kit 2 IN 1
Highlights:
✅ Dual-Function Testing – Measures free chlorine (OTO) and pH levels (Phenol Red) in seconds.
✅Easy-to-Use – Simply add drops to a water sample, compare colors, and get instant results.
✅Precise & Reliable – High-quality reagents ensure accurate readings for optimal pool maintenance.
✅Compact & Portable – Includes 1/2-ounce (15ml) bottles in a secure bubble pack – perfect for travel or on-the-go testing.
✅Includes Chlorine Neutralizer – Sodium thiosulfate ensures safe handling when adjusting water chemistry.
Pool Water Liquid Test Kit – OTO & pH Solution | Accurate & Easy Water Testing
Product Description
Keep your pool water perfectly balanced with our Pool Water Liquid Test Kit! This professional-grade testing solution includes OTO (Orthotolidine) and pH (Phenol Red) reagents, providing quick and accurate measurements for chlorine levels and pH balance. Whether you’re a pool owner, maintenance professional, or swim facility manager, this kit ensures crystal-clear, safe, and sanitized water all season long.
Key Features
✔ Dual-Function Testing – Measures free chlorine (OTO) and pH levels (Phenol Red) in seconds.
✔ Easy-to-Use – Simply add drops to a water sample, compare colors, and get instant results.
✔ Precise & Reliable – High-quality reagents ensure accurate readings for optimal pool maintenance.
✔ Compact & Portable – Includes 1/2-ounce (15ml) bottles in a secure bubble pack – perfect for travel or on-the-go testing.
✔ Includes Chlorine Neutralizer – Sodium thiosulfate ensures safe handling when adjusting water chemistry.
How to Use
Collect Water Sample – Fill a test vial with pool water.
Add OTO Drops – Check chlorine levels (yellow color scale).
Add Phenol Red Drops – Measure pH balance (red/pink color scale).
Compare Colors – Match results to the included pH & chlorine color chart.
Adjust as Needed – Add chemicals if levels are outside the ideal range.
Ideal Applications
Home Pools – Maintain safe, irritation-free swimming conditions.
Hotels & Resorts – Ensure guest safety with regular water testing.
Public Pools & Spas – Comply with health regulations effortlessly.
Pool Maintenance Services – A must-have tool for professional water treatment.
Why Choose Our Test Kit?
✅ Fast & Accurate – No guesswork, just science-based results.
✅ Long-Lasting – Each 15ml bottle provides hundreds of tests.
✅ Essential for Pool Care – Prevents algae, skin irritation, and equipment damage.
Keep your pool pristine – order your Pool Water Liquid Test Kit today!
- 15ml
- Three different bottle options styles to choose from
- You can choose OEM logo or neutral logo

Related Pool Liquid Test
Our Innovations
Key Features for Pool & Spa Excellence
Pool-Specific Testing
Focused on chlorine, pH, bromine, alkalinity, and other parameters vital for safe, crystal-clear water.
Multi-Parameter Flexibility
From single tests to 7-in-1 panels, tailor strips to your maintenance routine.
Spa & Hot Tub Ready
Resistant to high temperatures and formulated for accurate readings in spa environments.
Instant Insights
Color-coded results in seconds, enabling quick adjustments to prevent algae, irritation, or equipment damage.
Applications
The design of these Water Test Strips balances precision and convenience, making them suitable for a wide range of water testing scenarios, thus meeting the needs of pool, spa, and hot tub owners for comprehensive and accurate water quality monitoring.

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Humidity-resistant strips provide ±0.1 pH accuracy at 40°C, monitoring bromine and active oxygen levels in steam-rich environments.

Industrial-grade strips measure phosphate (0-10 ppm) and magnesium (0-150 ppm) with ±2% reproducibility under extreme TDS conditions.
ODM&OEM Service
AQUAPROBE offers Tailored Water Test Strips for Swimming Pools, Spas, and Hot Tubs, allowing users to customize their testing needs. Customization options include, but are not limited to:

Test Parameter Selection
Bromine, Total Alkalinity, pH, Free Chlorine, Cyanuric Acid, Total Chlorine, Salt, Copper, Total Hardness

Quantity OEM/Packaging
You can choose 50pcs, 200pcs, 750pcs, or bulk orders and paper pouches, cylindrical tubes, square boxes, or branded packaging)
Clean & Safe Pool Water
Why Choose AQUAPROBE?
Perfect for pool maintenance companies, hotels, resorts, and homeowners who demand precision, convenience, and customization in water testing.
- High Accuracy & Reliability
- Fast & Easy-to-Use
- Custom Branding Available
- Bulk Order Discounts
Why AQUAPROBE is Trusted by 5000+ Partners Worldwide
AQUAPROBE delivers high-precision, reliable, and customizable water testing solutions for pools, spas, and hot tubs. Here’s why industry leaders choose us:
In-House R&D & Manufacturing
We design and produce our test strips in-house, ensuring strict quality control from raw materials to final packaging. Our advanced formulation guarantees fast, accurate results every time.
Premium Chemical Strips
Unlike competitors who use cheaper reagents, we source high-grade chemicals for superior sensitivity and consistency. This minimizes false readings and ensures longer shelf life.
Eco-Conscious Production
We design and produce our test strips in-house, ensuring strict quality control from raw materials to final packaging. Our advanced formulation guarantees fast, accurate results every time.
ODM/OEM
Tailored Test Parameters (Bromine, Chlorine, pH, Hardness, etc.);Flexible Quantities;Custom Packaging (Pouches, tubes, boxes, or branded solutions)