A high-quality and durable straight flexible WC connector from McAlpine, designed for all plumbing solutions. This medium-length connector features an adjustable inlet range of 97mm-107mm, fitting all pan spigots, and a 4in/110mm outlet that fits inside PVC-U and cast iron soil pipes. The WC-F23RV includes a 1.25" universal vent boss, which connects to a soil vent pipe to prevent pressure buildup, unpleasant smells, and potential blockages in the waste pipe. Its flexible design allows for easy installation and adjustment, even in awkward situations where the soil pipe may not be perfectly aligned. Independent tests confirm no sediment buildup in the flex. Ensure correct installation for a watertight seal and prevent leaks or odors; follow manufacturer instructions or consult a professional plumber if needed.