Hercules Cryo-Tek -100 is a ready-to-use, non-toxic anti-freeze formulated with virgin propylene glycol and a triple protection inhibitor package. It provides freeze, flow and burst protection for closed-loop hydronic heating, cooling and radiant systems. The red-colored formula is premixed and not intended for boilers with aluminum heat exchangers.

• 55 gallon drum
• Virgin propylene glycol with triple protection inhibitor package
• Undiluted freeze protection to -60°F, minimum flow to -70°F, burst protection to -100°F
• Color: Red
• For hydronic heating and cooling closed-loop systems, most solar heating systems, snow melts, radiant heat and general plumbing systems
• Compatible with metal, plastics (except CPVC) and rubber piping, fittings, seals, and other parts