The McAlpine WM3 is a 75mm water seal standpipe trap with a 1.5" multifit outlet. It is designed for use in plumbing systems to prevent foul smells and gases from entering the property. The trap has a 75mm water seal that creates a barrier to prevent the passage of gases and smells. This water seal also helps to prevent blockages by trapping debris and preventing it from entering the drainage system. The standpipe design of the trap allows for easy installation and maintenance. The multifit outlet is designed to fit a range of pipe sizes, making it a versatile option for use in various plumbing systems. The McAlpine WM3 standpipe trap is made from high-quality materials and is designed to provide reliable performance and durability. It is suitable for use in a variety of applications, including commercial and industrial plumbing systems. Overall, the McAlpine WM3 standpipe trap is a reliable and efficient option for those looking for a high-quality trap for use in their plumbing systems. 75mm Water Seal 1.5" Universal Compression Outlet suits all plastic, copper and lead pipe Anti-Syphon Valve neutralises negative syphonic pressure and eliminates gurgling Can accept discharge from a washing or dishwashing machine Supplied with blank plugs allowing trap to function as a normal sink trap until the domestic appliances are connected McAlpine WM3 75mm Water Seal Standpipe Trap with 1.5" Multifit Outlet in White