Easily connect to sheared-off pipes with the Icon coupling. The Fernco Icon coupling is an internal push-fit connector for cast iron, plastic SCH-40 or SDR-35 or copper pipes. This 4 inch connector connects two pipes with internal diameters ranging from 3.90-inch to 4.06 inch By using an ICON coupling you will be able to reduce labor time on challenging jobs where time is money, be able to connect to pipes with different outside diameters and do all this without the need to expose the external surface of the pipe. Ideal for above- and below-ground sewer and DWV applications, this coupling can be installed vertically or horizontally. With a reputation for quality, innovation, and reliable performance, you can trust Fernco as the global leader in flexible plumbing connectors.