The JCM Industries Optimum Range Ductile Iron Coupling is designed for pipe sizes ranging from 10 to 12.12 inches. This coupling is made from high-quality ductile iron, ensuring durability and strength in various applications. It features a robust design that meets industry standards, making it suitable for use in water and wastewater systems. The coupling is equipped with 6 bolts for secure fastening, providing a reliable connection. Its compatibility with various pipe materials enhances its versatility, making it an essential component for plumbing and industrial projects.