The Gates 21191 Premium Molded Coolant Hose is a high-quality hose designed for engine cooling systems. It is manufactured by Gates and is rust-resistant, ensuring durability and longevity. This hose is specifically designed for use in vehicles and comes included with the hose itself. As a premium molded coolant hose, it is designed to effectively transport coolant throughout the engine cooling system, helping to regulate the temperature of the engine and prevent overheating issues.