Genuine OEM Porsche A/C Refrigerant Hose Line, part number 9J1820249H. This hose is a vital part of the air conditioning system, responsible for transporting refrigerant. It is located within the AC system, connecting different parts to ensure proper refrigerant circulation. Genuine OEM parts guarantee exact fitment and use materials that can withstand the pressures and temperatures of the AC system, ensuring reliable performance.