Hach DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, Range from 0.02-2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water and Wastewater Analysis, for Use with Colorimeter, 2105569

Good buy, great company i had missing products and they sent me replacement pouches

worked as the should , Hach has been around the water works industry for many years , of course their stuff is reliable

I have to use these every day to check the chlorine for our neighborhood water system. It’s a much better price than buying them through our well contractor.

The packets are what we need to tell the chlorine levels in our drinking water with in our community well

These have worked fine and have had no issues with them.

GREAT

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.

This is the third time I have ordered this product. From order to delivery, everything goes well with no problems.

😊👍