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💦 Stay pool-party ready with precision you can trust!
This WWD POOL refill kit includes two 1/2oz bottles of OTO Chlorine and Phenol Red pH test solutions, designed for accurate measurement and maintenance of chlorine, bromine, and pH levels in swimming pools and spas. Lightweight and compact, it’s a top-ranked, eco-friendly choice favored by thousands for reliable water quality management.



















| ASIN | B088QQLCNH |
| Best Sellers Rank | #2,478 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #7 in Swimming Pool Water Test Kits |
| Brand | WWD POOL |
| Brand Name | WWD POOL |
| Customer Reviews | 4.4 out of 5 stars 2,265 Reviews |
| Item Weight | 45 Grams |
| Manufacturer | WWD POOL |
| Material Type | Plastic |
| Model Number | AC-IITI-12BD |
| Number of Items | 1 |
| Part Number | AC-IITI-12BD |
| Ph Range | Various |
| Recommended Uses For Product | Swimming Pool, Spa |
| Sterility Rating | Various |
| UPC | 742089590033 |
B**R
Worked as expected
Indicates conditions as expected. Good price.
L**N
Exact placement
This was the exact product replacement for my test kit that I've had for about 2 years.
A**R
Super easy and accurate
We have used these to test our hot tub for many many years. It’s super simple, four drops in the water test kit to test chlorine and pH levels. Once we know where we stand by matching up the colors on the test kit, then we just add pH up or pH down and some chlorine and everything stays pretty perfect!! Super easy and accurate!
K**R
Spa chemicals OK
The chemicals are fine but the bottles are stiffer than I am used to. The tops were a little difficult to remove at first and may loosen up as I use it more. To squeeze the drops, the bottle is very stiff. That has nothing to do with the chemicals, they are fine but I have arthritis in my hands so it is more difficult to manipulate small things like this. just an FYI for other older people.
D**T
Great Replacement!
Great product for monitoring my pool’s chemical levels! Replaced my kit’s original solution and continues to give accurate results.
D**K
Definitely An Great Replacement Fix
Works as expected. I have been ordering this product for several years. Great value.
L**S
Working well
As stated great quality
E**S
OTO Drops Not Accurate
The OTO drops product is not accurate. It gets totally different readings than my drops and strips I am currently using, which match each other. No Expiration Date? Worthless !
Trustpilot
2 months ago
2 weeks ago