. 97-107mm Inlet x 4/110mm Outlet 90° Flexible WC Connector Features. Outlet fits 4/110mm inside diameter of PVC-U & cast iron soil pipe 97-107mm Inlet suits all pan spigots Independent tests prove conclusively that there is no build-up of sediment in the flex Enables easy installation of WC pans in awkward situations Complies with DIN 1389 2000-05 Manufactured in Polypropylene LGA certified..