Hercules® Cryo-Tek™ Original Antifreeze, 1 gal, Composition: Propylene Glycol, Water, Liquid, Blue/Pink, Odorless, >212 deg F Flash, 8.5 to 10, 575 g/L VOC, 10 cP Viscosity Rating, Flammability: 0
Hercules® Cryo-TeK™ Original Antifreeze is designed for hydronic heating and cooling closed loop systems, most solar heating systems, snow melts, radiant heat and general plumbing systems.