The ICON RC is a revolutionary new coupling that makes it easier and faster to connect pipes, even when they are encased in concrete or surrounded by brick. Designed for resistance to heavy earth loads and shear forces, while providing improved pipe alignment, this coupling is made from high-quality materials and provide a water-tight connection for a permanent repair. The finned flange end connects to plastic (SDR 35, Sch 40), cast iron and copper pipe with an internal diameter: 3.90" - 4.06". The shielded-coupling end connects to 4” cast iron, plastic (SDR 35, Sch 40) and copper pipe with an external diameter of 4.10-4.65”. For drain, waste, and vent pipe applications. Max pressure 4.3 PSI. Meets the requirements of ASTM C1173.