The JCM Industries KEL300 DI Transition Coupling features ECoat bolts designed for seamless transitions between pipe sizes 12 inches, specifically from 13.20 to 13.50 inches down to 12.75 inches. This coupling is engineered for durability and reliability in various applications, ensuring compliance with industry standards. The ECoat finish provides enhanced corrosion resistance, making it suitable for both underground and above-ground installations. With a robust design, this coupling is ideal for use in water and wastewater systems, ensuring a secure and leak-free connection.