This product is a Genuine BMW A/C Refrigerant Hose, part number 64509117130. It is designed to be used in the air conditioning system of BMW vehicles. The hose is made from high-quality materials and is specifically designed to fit and function properly in BMW models. It is an essential component for the proper functioning of the A/C system and ensures the efficient flow of refrigerant to cool the interior of the vehicle. This A/C refrigerant hose is a genuine OEM part and is recommended for use in BMW vehicles for optimal performance and reliability.