The Optimum Range Ductile Iron Coupling by JCM Industries (KEL300) is a robust solution for pipe connections, accommodating sizes from 3.45 to 4.20 inches. This coupling features an epoxy coat finish and E-Coat bolts, ensuring long-lasting performance and resistance to corrosion. Designed for use in water and wastewater applications, it meets industry standards for safety and reliability. The ductile iron construction provides excellent tensile strength, making it suitable for high-pressure environments. This coupling is an ideal choice for contractors looking for durable and effective pipe fittings.