This is treated water solution 460-TFS200, CCLS, biocide/corrosion inhibitor, 5 gallons premixed with water ready to pour for Thermo Chillers. The 460-TFS200 treated water with Nalco, is used with chilled water baths and recirculating chillers. The solution has a low freezing point to allow the chillers to operate a lower temperatures than allowed with water, temperature Range +5°C to +95°C. They are sold in a 5 gallon container and have Thermo Scientific Neslab part number 610000000007.