Fernco Inc. P1070-44 Flex Coupling Used for corrugated polyethylene drainage tubing Designed to connect modern drainage and irrigation systems to PVC pipes quickly and easily Lightweight, flexible, heavy-duty PVC connectors fit tight Ideal for use in storm and sub-soil drainage systems, farm irrigation systems, golf course drainage, residential areas, anywhere corrugated polyethylene drainage and irrigation systems are connected to S and D or DWV plastic pipe 4-Inch x 4-Inch