The McAlpine W3 1.5"Backnut Sink Waste is a plumbing fitting designed for use with sinks, providing a secure and leak-free connection between the sink and the waste pipe. It features an 85mm white plastic flange, a 3.5" tail, an unslotted waste design, and a plug. The W3 Sink Waste is constructed from high-quality materials and meets all relevant plumbing standards, ensuring reliable performance and durability. It is suitable for use in domestic and commercial sink installations. The 85mm white plastic flange of the McAlpine W3 Sink Waste provides a secure and leak-free connection to the sink, while the 3.