The JCM Industries Long Ductile Iron Coupling with Epoxy Coat and Stainless Steel Bolt is designed for pipes with a diameter of 4.5 inches. This coupling features a protective epoxy coating that enhances corrosion resistance, making it ideal for water and wastewater applications. The stainless steel bolt ensures durability and reliability in various conditions. It meets industry standards for safety and performance, providing secure connections for both new installations and repairs. The robust design allows for easy installation, making it a practical choice for contractors.