The JCM Industries Optimum Range Ductile Iron Coupling with Epoxy Coat and Alloy Bolts is designed for pipe sizes from 8.40 to 9.75 inches. This coupling features a protective epoxy coating that enhances its resistance to corrosion and wear, making it ideal for harsh environments. Constructed from high-quality ductile iron, it meets ANSI standards for reliability and safety. The inclusion of 10 alloy bolts ensures a secure and stable connection, facilitating easy installation. This coupling is perfect for water and wastewater applications, providing a dependable solution for contractors and engineers.