Dura-Line smooth wall HDPE conduit (smooth out / ribbed in variant) manufactured to industry standards for telecommunications and underground utility installations. Product is flexible HDPE suitable for gradual bends, available in multiple sizes and colors, offered on continuous reels (3000 ft reel option shown) and available with factory pre-installed Bull-Line pull tape in a variety of tensile ratings. Meets/exceeds multiple ASTM, NEMA and UL standards. (Manufacturer pages and technical data sheets discovered but the manufacturer site was blocked during rendering; distributor pages were used to capture product attributes.)