Champion Premium RV Antifreeze is made for winterizing potable water plumbing systems in recreational vehicles, boats, trailers, and more. The product is considered generally recognized as safe by the FDA. Is has protection down to -50°F. Champion Premium RV Antifreeze is ready to use and comes in a case of 6, one gallon jugs.  It is safe to use with brass, copper, other metals, and plastic (except for acetate).  This premium product contains pure propylene glycol and is alcohol free.