As the de facto standard for liquid sanitization, HASA products including Multi-Chlor®, Hasachlor®, and Sani-Clor® have set the high bar for reliability and sustainability since the company’s inception. Sodium hypochlorite is made from naturally derived products. After it cleans industrial and commercial water systems and recreational water sources (such as private and commercial swimming pools, spas and hot tubs), it returns to salt—and is safe for our oceans and communities.