The product is a genuine OEM water hose designed for BMW E21 and E28 3 and 5 Series vehicles, with the part number 11531276385. Manufactured in Germany by BMW, this high-quality hose is guaranteed to provide a perfect fit and reliable performance. Perfect for car enthusiasts looking for authentic parts to maintain on a budget or upgrade their BMW vehicles, this water hose is a must-have accessory for any BMW owner.