The McAlpine WC-F23SV is a straight flexible WC connector designed for use with 97-107mm inlet and 90mm/3.5 inch outlet waste pipes. It features a 1.25 inch universal vent boss that can be used to connect a vent pipe to the waste system. This allows for improved ventilation and helps to prevent unpleasant odors from entering the bathroom. The connector is made from high-quality, durable materials and is designed for a secure, leak-free connection between the toilet pan and the waste pipe. The flexibility of the connector makes it easy to install in tight spaces or where access is limited, and it can be used for both horizontal and vertical installations. This product is suitable for use in domestic and commercial applications and is a reliable choice for connecting toilets to waste pipes. ・ 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