Black Swan 1-1/2 In. Neoprene No-Hub Coupling is designed to meet industry standards and easy installation. The rubber gasket complies with ASTM C564, ensuring a leak- connection for your plumbing needs. This coupling performs reliably in all temperatures, making it i for a wide range of applications. Say goodbye to leaks and enjoy a secure, durable plumbing system with this high-quality coupling. Model Number: 21110