COOLCLEAR 120 is a corrosion and scale inhibitor treatment for open recirculating cooling water systems. This product contains a combination of organic phosphonates, polymeric dispersants, zinc, and azole corrosion inhibitors. It is specifically designed for systems which are operated with moderate hardness and alkalinity makeup waters. The product has been approved by NSF for treatment of cooling and retort water (G5) in and around food processing areas.