The Flexseal Standard Coupling SC137 is an essential piece of equipment for any plumbing job. This coupling, designed to fit pipes of 120-137mm diameter, enables secure and watertight connections between pipes. Made from durable materials that can withstand harsh conditions, it offers longevity and reliability. Its design allows for ease of installation, making it a favourite amongst professionals and DIY enthusiasts alike. With Flexseals commitment to quality, this standard coupling is a versatile solution that ensures seamless operation in varied piping systems.