The 5 Inch ID To 3 Inch ID Aluminized Reducer is a practical and versatile product made of durable aluminized steel. With a 5-inch outer diameter (Measurement A) and a 3-inch inner diameter (Measurement B), it fits most makes and models. Its 8-inch overall length ensures a secure and reliable connection. Sold individually, this reducer offers a cost-effective solution for various applications. Its high-quality construction guarantees long-lasting performance, making it an essential component for any project requiring a reduction in pipe size.