The JCM Industries Extended Range Universal Clamp Coupling is designed for pipe sizes from 20.40 to 21.40 inches, accommodating 18 to 20 inch pipes. This coupling is constructed from high-quality materials, ensuring durability and reliability in various applications. It is ideal for connecting different pipe types and sizes, providing a versatile solution for water and wastewater systems. The coupling's design allows for easy installation and a secure fit, making it suitable for both new installations and repairs. This product meets industry standards for safety and performance.