Chlorine Test Strips, 0-1000 PPM

Hydrion 0-1000 chlorine test strips measure the concentration of free chlorine in sanitizing/disinfecting solutions. The color chart has matches at 0-50-100-250-500-800-1000 ppm.

Packed 100 strips in a desiccant lined flip-top vial. 

Sold in cases of 6 vials.