The JCM Industries KEL300 DI Transition Coupling is designed for seamless transitions between pipe sizes, specifically from 4.80 to 5.10 inches down to 4 inches. This coupling is constructed from durable ductile iron, ensuring reliability and performance in various applications. It meets industry standards for water and wastewater systems, providing a secure and leak-free connection. The robust design allows it to withstand high pressure, making it compatible with a range of piping systems. Ideal for both installation and maintenance, this coupling ensures long-lasting performance.