This product is a genuine Porsche heater hose with the part number 98710621230. It is designed to be used in Porsche vehicles and is used to transfer hot coolant from the engine to the heater core, allowing for warm air to be blown into the cabin. This hose is made from high-quality materials and is specifically designed to fit and function properly in Porsche vehicles. It is an essential component for maintaining the proper functioning of the heating system in a Porsche vehicle.