

💧 Stay ahead of water safety—test smarter, not harder!
The Industrial Test Systems 480022 WaterWorks Free Chlorine HR Test is a professional-grade, easy-to-use test strip kit that measures free chlorine levels from 0 to 120 ppm. Manufactured in the USA under strict quality controls, this 50-strip kit offers reliable, reagent-free testing with a clear color chart, making it ideal for both technical and non-technical users seeking precise water sanitizer monitoring.
| ASIN | B002AH7KR2 |
| Best Sellers Rank | #183,346 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #280 in pH Test Strips |
| Date First Available | October 2, 2003 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.635 ounces |
| Item model number | 480022 |
| Manufacturer | Industrial Test Systems, Inc. |
| Product Dimensions | 8.25 x 4 x 1.63 inches |
C**S
... this product for years at our engineering firm with great success.
We have used this product for years at our engineering firm with great success.
F**A
Good product for aquarium
Easy and saving fishes. This product should be available in Australia.
S**E
Difficult to read
I can't say how accurate they are, because I haven't compared them side by side to a known high quality source. But I can say they are difficult to read, and telling the difference between 30 and 50 ppm is difficult to say the least. I'm lowering my score even further because these are basically useless since the color variation is so slight between the different the different PPM levels. The only thing I can really tell is if I have less than 10ppm.
R**H
Affordable
Did exactly what I needed them for
F**D
Work good
I followed instructions on there website and they work great. Would buy again
Trustpilot
2 weeks ago
2 weeks ago