Star brite -46°C (-50°F) antifreeze is a safe, non-toxic antifreeze suitable for use in domestic water systems and engine coolant systems on board boats and RVs, protecting the potable water system and engine cooling system from freeze damage. The odourless, tasteless antifreeze comes in a 3.78 litre bottle (1 US gallon) that is ready-to-use and protects down to -46°C, whilst preventing fouling, corrosion and algae growth. The Star brite domestic antifreeze also helps to lubricate water pumps and valves throughout the water system as well as preventing the corrosion of aluminium, copper, brass and solder. This antifreeze will not damage rubber, seals or hose materials.

This ready to use antifreeze solution requires no dilution - Do Not Dilute.