FSS-ProTect GL RTU (Ready To Use) Glycerin based antifreeze, is Lubrizol approved for use in all types of CPVC fire sprinkler systems. This products unique formulation provides extended use life with biostatic additivies to fight microbial degregation. Oxidation and microbial contamination often shorten the useful life of a fire sprinkler system by causing significant damage due to elevated corrosion rates. "If it smells, it's probably bad" .

Click for the product fact sheet --->http://www.huguenotlabs.com/PDF/FSS%20ProTect%20GL%20Tech.pdf