PrintMunro Freeze Defeat Munro guards your pump from freezing weather! Prevents damage due to freezing Helps protect your pump from corrosion Promotes longevity by keeping your elastomers lubricated and prohibiting rust Is your pump ready for winter? Try Freeze Defeat, the NEW pump winterization fluid by Munro! Rest easy knowing your pump is protected. Non-toxic, pump winterization fluid. CONCENTRATE. Pump protection to -25 degrees.