Prime Guard -50 RV Antifreeze is an ethanol-based coolant designed for recreational vehicles and marine applications. This 55-gallon drum provides excellent freeze protection down to -50°F, ensuring your systems remain safe in extreme temperatures. The non-toxic formula is safe for use in potable water systems, making it ideal for RVs and boats. It effectively prevents corrosion and scale buildup, extending the life of your plumbing and engine systems. Use Prime Guard RV Antifreeze for reliable protection and peace of mind during winter storage.