The Smoothwall 3" SDR 11, manufactured by Duraline, is a high-density polyethylene (HDPE) conduit designed for versatility and efficiency in a variety of applications, including telecommunications, electrical installations, and municipal infrastructure. This conduit can be installed in cold climates and offers flexibility, allowing for gradual bends without the need for special tools or equipment. Its continuous lengths and long reels significantly reduce installation costs by minimizing junctions. Co-extruded with SILICORE® ULF lining, this product enhances cable pulls and supports higher speed jetting, making it an excellent choice whether used as outer conduit or innerduct. With compliance to multiple industry standards and available in a broad array of colors, including custom options, the Smoothwall SDR 11 is well-equipped to meet the demands of both industrial and underground applications while ensuring optimal performance and durability.