Winter Pruf AntifreezeTrusted by leading OEMs like Jacob, Keystone, Thor, Forest River, Newmar, Tiffin, and REV, Winter Pruf Antifreeze has earned its reputation with over 50 years of trademark excellence and zero warranty claims. This product stands as a testament to quality and reliability.
Safe and Non-Toxic FormulaWinter Pruf Antifreeze is a non-toxic, alcohol-free formula that is GRAS (generally recognized as safe). It lubricates seals and gaskets without drying them out, ensuring optimal performance and longevity. The propylene glycol base enhances its lubrication properties.
Versatile ProtectionThis antifreeze is safe for use in RVs and marine engines, and will not harm plastic, copper, brass, or steel plumbing. It provides superior burst protection down to -50°F when used according to label directions, safeguarding your systems even in extreme conditions.
Ideal for Drinking Water SystemsWinter Pruf Antifreeze is also safe for RV and marine drinking water systems, making it ideal for winter storage to prevent frozen lines. It comes in both a ready-to-use -100°F formula and a -50°F concentrate, meeting a wide range of needs.
Made in the USAProudly made in the USA, Winter Pruf Antifreeze embodies 50 years of dedication to quality. Choose the trusted product for reliable protection of your RV and marine systems.