The Vaico Expansion Tank Hose (X3) - V201254 is a high-quality replacement hose for the expansion tank in a vehicle's cooling system. It is designed to withstand high temperatures and pressure, ensuring reliable and long-lasting performance. This hose is specifically designed for use in the X3 model, making it a perfect fit and easy to install. It is made from durable materials and is built to OEM specifications, ensuring a perfect fit and function. This expansion tank hose is an essential component for maintaining the proper functioning of a vehicle's cooling system.