Hach Free and Total Chlorine Test Kit Model CN-66 | 0 - 3.4 Mg/L

Hach Chlorine Color Disc Test Kit, Free & Total, Model CN-66 uses powder DPD reagent that quickly reacts with chlorine for accurate results. This kit is suitable for small water systems, swimming pools and spas, and as a reliable low cost  back-up to electronic colorimeters.

Includes two reagents, color disc, color comparator box, tube, instruction sheet, and carrying case.