Quick view Douglas Products Douglas HTF Inhibited Propylene Glycol MSRP: лв79,55 - лв416,88 Douglas HTF Inhibited Propylene Glycol in 1 Gallon Containers Recommended for: Block Ice Machines Circulating Beer Systems Closed Water Loop Refrigeration System Wood Boiler System Closed... MSRP: лв79,55 - лв416,88 Quick Add Add to Wish list