This product is a genuine BMW HVAC heater hose, part number 64216928593. It is designed for use in the heating, ventilation, and air conditioning system of BMW vehicles. This hose is made from high-quality materials and is specifically designed to fit and function perfectly in BMW models. It is an essential component in the HVAC system, responsible for transporting hot coolant from the engine to the heater core, where it is used to heat the cabin of the vehicle. This heater hose is an authentic BMW part and is guaranteed to meet the highest standards of quality and performance.