A Blue PU (Polyurethane) Tube is a type of flexible tubing made from polyurethane, a highly durable and versatile plastic material. These tubes are often used in industrial, automotive, pneumatic, and fluid transfer applications due to their excellent wear resistance, flexibility, and high tensile strength. The distinctive blue color is typically used for easy identification and to denote specific uses, such as in compressed air systems or water-based fluid transfer systems.