Genuine OEM Volkswagen Refrigerant Hose with Internal Heat Exchanger, part number 5WB816738F. This hose is a component of the vehicle's air conditioning system, designed to transport refrigerant and includes an internal heat exchanger. It is located within the A/C system assembly. The hose measures 0.57m in length, 0.2m in width, and 0.15m in height, with a weight of 0.501 kg. Genuine OEM refrigerant hoses are constructed with specific materials and pressure ratings to prevent leaks and ensure the longevity of the A/C system.