The McAlpine 2" X 1 1/2" Bsp Coupling is a plumbing fitting designed for connecting pipes of different sizes. The coupling is made of high-quality PVC material, and it has a 2-inch female threaded end and a 1 1/2-inch male threaded end. The coupling is designed to be used with pipes that have a British Standard Pipe (BSP) thread, which is a common type of threading used in plumbing applications in the United Kingdom and other parts of the world. The McAlpine 2" X 1 1/2" Bsp Coupling is typically used to connect two pipes of different sizes together, allowing for the efficient and reliable transfer of fluids or gases. The coupling is easy to install and can be tightened securely using a wrench. Overall, the McAlpine 2" X 1 1/2" Bsp Coupling is a high-quality plumbing component that is built to last. It is suitable for use in a wide range of plumbing applications and is compatible with a variety of different pipe materials. Available in 9 sizes Waste Outlet Reducer | McAlpine T12C 2" X 1.5" BSP Coupling in White