The McAlpine TSG1T6SS+STW1-R is a trapped gully unit designed for use in plumbing and drainage systems. It has a 75mm water seal, which helps to prevent foul odors and gases from escaping into the building. The unit includes a clamp ring and cover plate for secure installation, and it has a 2" horizontal outlet with a 2" x 1.5" socket reducer. The trap has a 19mm water seal, which is suitable for low-level applications such as shower trays and wet rooms. It also features a 1.5" multifit outlet, which provides flexibility and ease of installation. The unit is constructed from durable stainless steel, which ensures longevity and resistance to corrosion.