Has some paint chips as shown The Zurn Wilkins AG-4 air gap fitting is a durable and reliable air admittance valve suitable for industrial plumbing applications. Made from high-quality cast iron, this fitting is designed to fit 3/4" to 1" blue cast iron piping systems. With a focus on air management, this product is specifically designed to regulate and prevent the entry of air into the plumbing system, ensuring optimal performance and efficiency. Perfect for use in various industrial and commercial settings where reliable air management is crucial.