P-6741-H LaMotte DPD 1B Reagent, 60ml

LaMotte P-6741-H DPD 1B Reagent (60 mL) is a liquid reagent used with compatible LaMotte water testing kits and colorimeters to measure free chlorine in water samples. It is commonly used for drinking water, pool, spa, and industrial water quality testing and works in combination with DPD 1A reagent for accurate chlorine analysis.