Advanced Drainage Systems 4 in. x 3 in. Reducing Coupling is designed for efficient drainage and waste management applications. Made from strong, lightweight polyethylene plastic, this corrugated pipe fitting is durable and resistant to breaking or crushing. It also withstands exposure to acids, alkalis, and zing temperatures, ensuring reliable performance in various conditions. The reducing coupling measures 4 inches by 3 inches, making it i for connecting pipes of different sizes securely and effectively. Model Number: 314