The Hercules Cyro-Tek Anitfreeze is designed for use in hyrdronic heating and cooling closed-loop systems, most solar heating systems, snow melts, radiant heating, and general plumbing systems. The antifreeze is ready-to-use, 45-percent Virgin Propylene Glycol formula, containing a triple protection inhibitor that stabilizes pH to prevent corrosion and chelated hard-water minerals, while also inhibiting scale and sediment formation. Hercules Antifreeze can be used in systems fabricated with metal, plastics and rubber piping, fittings, seals, and other parts.

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