Engineered for exceptional durability and versatility, this 4" IPS SDR-11 Smoothwall HDPE Innerduct Conduit from Duraline is a top-tier solution for a variety of applications. Compliant with industry standards such as UL 651 and NEMA TC-7, it features a robust construction that allows for installation in cold climates, making it suitable for diverse environments. The innerduct boasts a co-extruded SILICORE® ULF lining, facilitating longer cable pulls and higher speed jetting, all while its flexible HDPE composition allows for gentle bends without the need for special tools. Available in continuous lengths, this conduit minimizes junction points, thereby reducing installation costs and enhancing efficiency. With a nominal inner diameter of 3.633 inches and a maximum pulling tension of 11,145 lbs, it can handle significant demands, whether used as outer conduit or innerduct. Choose from a variety of colors to suit your project needs, and experience the advantages of a product designed to meet the rigorous requirements of modern infrastructure.