This document provides information on PVCu specification and utility ducts for carrying services like electricity, water, telecommunications, and gas. It describes key features of the ducts including sizes from 54mm to 160mm that suit common specification requirements. Details are given on types of non-sealed and sealed ducts, bends, and couplings that comply with standard BS4660 and are available in made-to-order sizes and colors from the manufacturer. Contact information is also provided.