The JCM Industries KEL300 DI Transition Coupling features stainless bolts and is designed for transitioning between pipe sizes from 4.5 inches to 4.22 inches. Constructed from high-quality ductile iron, this coupling offers excellent durability and corrosion resistance, making it suitable for water and wastewater applications. It meets industry standards, ensuring a reliable connection. The robust design allows for high-pressure applications, providing a secure fit that prevents leaks. Ideal for various piping systems, this coupling is easy to install and maintain, ensuring long-lasting performance.