The Grand Rock 4 In I.D/O.D or O.D/O.D Diameter 45 Degree Elbow Pipe is a practical and versatile product. Made with aluminized material, it is durable and long-lasting. With options available in 4 Inch ID/OD or OD/OD, it fits most makes and models. The 6-inch length on each side and 4.5-inch center line radius ensure a perfect fit. This product is sold individually, making it convenient for customers. Its practicality and compatibility make it an excellent choice for various applications.