The Extended Range Universal Clamp Coupling 18 is designed for sizes 20.40 - 21.40 inches, featuring a 12 connection. JCM Industries manufactures this coupling to provide strength and flexibility in various applications. Made from high-quality materials, it ensures durability and resistance to environmental factors. This coupling is ideal for connecting pipes in plumbing and industrial systems, offering a secure and reliable seal. It meets industry standards for performance and safety, making it suitable for high-pressure applications. Its design allows for easy installation and maintenance.