ComStar ProFrost 30, Propylene Glycol Anti-Freeze, Does Not Contain Any Color Or Inhibitor, Prediluted to 30%, Ready to Use Formula, 30% Propylene Glycol, Made in USA, 5 Gallon (35-772)

"Comstar's profrost (propylene GLYCOL) is a premium industrial anti-freeze Coolant Designed for Use in chillers, industrial processing and refrigeration Systems, thermal storage, computer room cooling, solar Systems, heating & cooling loops and radiant heating Systems & boilers Profrost will last longer than others on the market and can be order with a corrosion inhibitor package, which is designed to prevent system corrosion and clog-ups Profrost is available with or without Green color/with or without a corrosion inhibitor In solution ratios (antifreeze to water) of 100 percent, 60 percent, 50 percent, 40 percent & 30 percent/in 5 or 55 gallon containers"