Crafted by Duraline, this 4" SDR 13.5 conduit with a smooth exterior and ribbed interior is engineered for optimal performance in a variety of installation scenarios such as plow, trench, directional bore, and aerial applications. The conduit features a permanently slick lining created by SILICORE® ULF co-extrusion, significantly reducing friction to ensure easier cable pulls compared to standard non-lubricated HDPE conduit. With the ability to have cable pre-installed up to 3 inches and equipped with a factory pre-installed Bull-Line™ Pull Tape offering varied tensile strengths, it caters to the demands of diverse construction projects. Additionally, options for UV protection make it suitable for external applications, ensuring durability and reliability in challenging environments.