The 5 Gallon/3.78 L Calcium Thiosulfate is a trusted solution for safe and effective dechlorination in potable water systems. Designed to neutralize chlorine and chloramine, it is essential during water main flushing, hydrant flushing, and before discharge to the environment. This environmentally friendly, neutral pH product is NSF 60 certified, non-hazardous, and easy to apply without any mixing.