The McAlpine SWL-18 is a standing waste with a backnut model and a 70mm flange. This type of waste is commonly used for free-standing basins and is designed to efficiently remove wastewater while also preventing blockages and overflows. The backnut model of the SWL-18 ensures a secure and reliable connection to standard UK plumbing, while the 70mm flange provides a stable and durable base for the standing waste. This type of waste is typically installed underneath the basin and is designed to fit into a standard 32mm waste pipe. The McAlpine SWL-18 standing waste is made from high-quality materials, ensuring long-lasting durability and reliable performance. This waste is designed to prevent leaks and blockages, even in high-usage situations. Overall, the McAlpine SWL-18 standing waste is a reliable and efficient solution for free-standing basins. Its backnut model and 70mm flange provide a secure and stable installation, while its high-quality construction ensures long-lasting durability and effective wastewater removal. ・ Available in 1¼" and 1½" sizes ・ Available in 2 tail lengths. 3 ½" tail and 1 ½" tail. ・ Supplied with Backnut and Washers ・ Standard length of Stand Pipe is 18" if other length required, when ordering state: (1) Code (2) Height required if not 18"