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๐ง Stay ahead in water quality with precision-packed power!
Hach DPD Free Chlorine Reagent Powder Pillows offer a USEPA-certified, highly accurate chlorine testing solution with a precise 0.02-2.00 mg/L range. This 100-pack of pre-measured, boric acid-free powder pillows is designed for easy, reliable use with Hach colorimeters and spectrophotometers, making it ideal for municipal, groundwater, and surface water monitoring.






| Customer Reviews | 4.8 out of 5 stars 286 Reviews |
R**4
Good price.
Best deal I could find on these and just what I needed.
L**E
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P**P
They worked great
Good buy, great company i had missing products and they sent me replacement pouches
L**W
Good Price
I have to use these every day to check the chlorine for our neighborhood water system. Itโs a much better price than buying them through our well contractor.
O**Y
Appear to be genuine Hach test pillows.
These have worked fine and have had no issues with them.
J**S
HACH
GREAT
R**.
Good source of Hach Products.
Hach dpd free chlorine testing pillow are well packaged and easy to use. Have long use periods before expiration but be sure to check the expiration date when you first get the package. Manufactured by Hach but sold by many people.
A**M
Good
Took forever to come
P**G
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Trustpilot
2 weeks ago
2 weeks ago