Prime Guard -100°F RV & Marine Premium Antifreeze 6 Gal

Prime Guard -100°F RV & Marine Premium Antifreeze delivers reliable winter protection for a wide range of recreational water systems, marine plumbing, and seasonal equipment. Formulated with a propylene glycol base, this high‑performance fluid safeguards against freezing and bursting down to -100°F, ensuring your RV, boat, camper, or vacation‑home plumbing remains intact during cold‑weather storage.

The advanced, alcohol‑ and glycerin‑free formulation is safe for potable water systems and includes corrosion inhibitors that protect fittings, pipes, and other components from rust and degradation. Ready‑to‑use straight from the container, the antifreeze requires no mixing or special preparation—simply add the 6‑gallon supply to your water lines for hassle‑free winterization.