Alcohol & glycerin free. Premium antifreeze for winterizing recreational water systems. Provides superior corrosion protection. Meets OEM specifications. Burst protection to -50 degrees F. Odorless. Non-flammable. Rvs, Boasts, Swimming pools. Vacation homes. Ready to use. Ideal for use in: Boats. Swimming pools. RVS mobile hoes. Vacation homes. Safe for use in all types of potable water & plumbing systems. Safe on copper, brass & plastics (except acetate)