Genuine OEM Audi AC Refrigerant Line, part number 4S0816726H. This line carries refrigerant within the air conditioning system, facilitating the transfer of heat for effective climate control. It connects to the condenser as part of the refrigerant circuit. Weighing 0.297 kg, this line is engineered for precise fitment and durability. Choosing a genuine OEM line ensures correct routing geometry, material compatibility with refrigerant, and leak-free performance under high pressure.