West Marine 100f Engine Water System Antifreeze Antifreeze 55 Gallons

West Marine 100f Engine Water System Antifreeze Antifreeze, 55 Gallons . West Marine Pure Oceans 100 73C Marine Antifreeze provides the ultimate in extreme cold weather and corrosion protection for drinking water systems and all engines. Its premium additive package prevents corrosion of aluminum, copper, brass and solder, but will not harm rubber, seals or hose materials. The 3X died blue green color provides excellent blow through visibility. Formulated with non toxic, virgin Propylene Glycol 60% Blend, it is tasteless and contains no alcohol. This product is ready to use or may be diluted please follow label directions for dilution ratios. Provides burst protection to 100F 73C and freeze protection within a range of 58F to 63F 50C to 52C When testing with a refractometer or hydro meter designed for use with propylene glycol, freeze point readings on the PG scale will range from 58F to 63F