The Polypipe UG400 is a 110mm slip coupler designed for underground drainage systems, featuring a double socket for connecting two sections of pipe easily and securely. Made from high-quality PVCu, this coupler provides long-lasting durability and leak-free performance. Ideal for domestic and commercial drainage applications, it ensures reliable water flow and compliance with BS EN 1401 standards. Suitable for quick installation in both new and replacement underground pipe networks.