Attributes

Brand	-
Category	Sports, Yoga, Fitness & Fan Gear / Pool Equipment
Origin	-
Test Parameters	pH and Residual Chlorine
Testing Method	OTO Colorimetric Comparison
Kit Contents	Test Box, pH Reagent, Chlorine Reagent, Color Chart
Reagent Volume	15ml per bottle
Number of Tests	Approximately 50-75 tests
Material	Durable ABS Plastic
Water Type Compatibility	Freshwater Pools and Spas
Storage Temperature	5°C to 30°C (41°F to 86°F)
Shelf Life	24 Months from manufacture date
Dimensions	4.5 x 2.5 x 1.2 inches

6 reviews

Anonymous

Mar 26, 2026

Rating: 5/5

Clear instructions

Even as a new pool owner, I found this very easy to use. The color chart is distinct, making it hard to misread the results. Highly recommended.

Anonymous

Mar 15, 2026

Rating: 3/5

Decent but basic

It does the job for basic testing. The plastic feels a bit thin, so I handle it carefully. The reagents seem accurate compared to my local store test.

Anonymous

Mar 14, 2026

Rating: 4/5

Reliable results

Been using this for three months now. The reagents haven't expired or changed color prematurely. A reliable tool for keeping water safe.

Anonymous

Mar 12, 2026

Rating: 5/5

Simple and effective for weekly checks

This kit is exactly what I needed for basic maintenance. The color comparison is clear, and the bottles are leak-proof. Great value for the price.

Anonymous

Mar 07, 2026

Rating: 5/5

Essential pool accessory

I keep one of these by the pool at all times. It helps me adjust chemicals before guests arrive. Fast shipping and well-packaged.

Anonymous

Mar 03, 2026

Rating: 4/5

Good starter kit

Works well for checking chlorine and pH levels quickly. I wish it included a tester for alkalinity as well, but for the cost, it's a solid choice.

5 FAQ

Q: Is this suitable for saltwater pools?

A: Yes, this kit works for saltwater pools as it measures the free chlorine residual, which is present regardless of how the chlorine is generated.

Q: Can this kit test for bromine levels?

A: No, this specific OTO kit is designed only for testing pH and residual chlorine levels. We offer separate kits for bromine testing.

Q: How often should I replace the reagents?

A: For best accuracy, we recommend replacing the reagents every swimming season or if they change color before the expiration date printed on the bottle.

Q: What do I do if the water sample turns dark purple immediately?

A: A dark purple result usually indicates extremely high chlorine levels. Please dilute your water sample with distilled water and re-test, then multiply the result by the dilution factor.

Q: Does the box float if I drop it in the pool?

A: The box is made of dense plastic and will likely sink if filled with reagents. We recommend keeping it on the pool deck during testing to avoid loss.

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