The OSP-FLUE REDUCER is designed to transition from a 5-inch diameter to a 4-inch diameter flue system, ensuring efficient venting for gas appliances. Manufactured by Bradford White Corporation, this reducer is made from durable materials that comply with industry standards for safety and performance. Its compact design allows for easy installation in tight spaces, making it ideal for various applications in residential and commercial settings. The reducer is compatible with standard venting systems and is essential for optimizing airflow and reducing back pressure in gas venting applications.