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🧪 Stay ahead with precision chlorine testing—because your water quality deserves the best!
The Hach Free Chlorine Color Disc Test Kit CN-66F offers a precise 0.1–3.4 mg/L measurement range using a quick and easy color disc method. Ideal for both field and laboratory use, this top-rated kit delivers fast, reliable free chlorine readings trusted by professionals. Note: Hach restricts shipping to domestic addresses only.

| Asin | B00N3ZCPCU |
| Best Sellers Rank | #57,844 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #423 in Lab Chemicals |
| Date First Available | August 28, 2014 |
| Item Model Number | 223102 |
| Item Weight | 0.16 ounces |
| Manufacturer | HACH COMPANY |
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