Genuine OEM Audi Refrigerant Pipe, part number 5WA816721D. This pipe is a crucial component of the air conditioning system, responsible for transporting refrigerant between system components. It is located in the engine bay, connecting to the A/C compressor and condenser. Constructed from high-quality materials to withstand system pressures and temperature fluctuations. Genuine OEM parts are manufactured to precise specifications, ensuring optimal system performance and longevity.