West Marine -100 degreeF Engine & Water System Antifreeze, Gallon Protect your boat this winter with West Marine -100 degreeF Engine & Water System Antifreeze, the ultimate solution for severe cold weather conditions. Perfect for boat owners who want to ensure their vessel is safeguarded during the off-season, this premium antifreeze offers exceptional cold weather and corrosion protection. Why Choose West Marine -100 degreeF Antifreeze? Superior Cold Weather Protection: Ideal for regions where temperatures plunge below 0 degreeF, this antifreeze provides reliable freeze protection with a rating down to -100 degreeF (-73 degreeC). Non-Toxic Formula: Made with pure virgin propylene glycol, this antifreeze is non-toxic, reducing residual smells and tastes while ensuring safe use for potable water systems and engines. Enhanced Corrosion Protection: Infused with advanced corrosion inhibitors, it prevents damage to metal components and seals, including aluminum, brass, copper, and solder. Alcohol-Free: This antifreeze is alcohol-free, reducing evaporation and maintaining consistent protection throughout the winter months. Ready-to-Use: No need for dilution this antifreeze is ready to use right out of the gallon, simplifying your winterizing process. Bright Blue-Green Color: The vivid triple-dye blue-green color helps you easily identify when the antifreeze has flowed through water lines, sanitation systems, or engine cooling systems, and serves as a clear indicator for spring flushing. Ideal for Extreme Cold: Specifically designed for regions experiencing temperatures between -58 degreeF to -63 degreeF (-50 degreeC to -52 degreeC), ensuring comprehensive protection even in the harshest conditions. Winterize your boat with confidence and avoid costly repairs come spring. Choose West Marine -100 degreeF Engine & Water System Antifreeze for the best in cold weather protection and peace of mind. For a complete guide to selecting the right antifreeze for your climate and application, see Antifreeze 101.