Star brite® Winter Tech -50°F (-46°C) Marine & RV Water System Antifreeze provides cold weather protection for drinking water tanks and systems and holding tanks at an attractive price. The alcohol and propylene glycol formula will not arm aluminum, copper, brass or solder, with a bright pink color for excellent blow-through visibility. This product is ready-to-use; do not dilute it
- Safe for copper, brass and all types of plastic.
- Non-toxic virgin propylene glycol formula.