The Polypipe ST401B Single Branch 4in/110mm 92½° Equal (2 Boss) is a durable PVC-U fitting designed for efficient branch connections in soil, waste, and vent pipe systems. Its 92.5° angle ensures smooth flow, reduces blockages, and the 2 boss design provides secure, leak-free connections. Ideal for domestic and commercial plumbing applications, this branch fitting is easy to install and built for long-lasting performance. Available at Plumbco for professional plumbing solutions.