Hach - Model CN-66 -Free Chlorine & Total Chlorine Test Kit, Color Disc, 0-3.4 mg/L, 100 Tests

Free & Total Chlorine Test Kit, Model CN-66 with Color Disc Method. Quickly and accurately measure free and total chlorine levels in the field or in the lab. Many Hach chlorine Tests have been accepted by the U.S. EPA for reporting purposes. Verify acceptance with your local regulatory agency.