The McAlpine WC-F21R is a flexible connector designed to connect a back-to-wall toilet pan to a soil pipe with an inlet diameter of 97-107mm. The flexible design allows for easy installation and adjustment, even in tight spaces. The WC-F21R connector features a universal outlet that can be adjusted to suit horizontal or vertical installations, and is suitable for use with all types of pan connectors. The connector is made from high-quality, durable materials that are resistant to chemical corrosion, making it a reliable and long-lasting solution for your toilet installation needs. When installing the WC-F21R, it is important to ensure that the connection is securely tightened and that the connector is properly aligned with the soil pipe and toilet pan. It is also recommended to use a silicone sealant around the connection to prevent any leaks. Overall, the McAlpine WC-F21R is a versatile and durable option for connecting a back-to-wall toilet pan to a soil pipe. ・ Available in 3 lengths ・ Outlet fits 3½"/90mm inside diameter 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