ComStar ProFrost I-50, Propylene Glycol Heat Transfer Fluid Anti-Freeze with Inhibitor, Prediluted to 50%, Ready to Use Formula, 50% Propylene Glycol, Made in USA, 5 Gallon (35-758)

‌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.