This product is not a concentrate, but may require dilution with distilled or deionized water prior to use. STAR BRITE Premium -100° Boiler System Antifreeze - Propylene Glycol Heating & Cooling Fluid - Made in USA - 1 Gallon (032700).
STAR BRITE Premium -100° Boiler System Antifreeze is ideal for protecting vehicles' advanced heating and cooling components, ensuring optimal engine performance in extreme cold temperatures.
