Hercules Cryo-Tek Antifreeze 5 gal

Hercules Cryo-Tek 30 gal -100 Antifreeze is a ready to use 55% Virgin Propylene Glycol formula. It's designed for hydronic heating and cooling closed loop systems, most solar heating systems, snow melts, radiant heat and general plumbing systems. Plumbers have come to trust the Hercules offering to provide the highest quality of plumbing products.