The first aerosol storage solution designed to protect your powerhead cooling system.Winterize It Pro is the first winterizing and protective storage solution in an aerosol can designed to specifically target your powerhead cooling system. It contains corrosion inhibitors, conditioners and a non-toxic antifreeze. It protects vital cooling ports from freezing and also puts a protective thin film barrier that significantly reduces the effects of corrosion in your cooling ports during storage. It works only on outboards and personal watercraft that are equipped with the factory built in flush system. One can typically protects outboards up to 300 horsepower. When you see the fluid from Winterize It Pro exit your exhaust, you know that the product has fully circulated through the cooling ports. Simple and easy to do.Key FeaturesTargets powerhead cooling systemsContains corrosion inhibitors, conditioners and a non-toxic antifreezeCreates a protective thin film barrier, reducing corrosion in cooling portsProtective storage solution in an aerosol can