Dura-Line's ribbed inner wall / smooth outer wall HDPE conduit provides a low-friction interior for long cable pulls while the external construction reduces installation forces. The product family is available in multiple SDR ratings (including SDR 13.5), multiple colors (including orange), and options such as SILICORE lining, pre-installed pull tape, and custom printing. Distributor listings show 1.25" SDR 13.5 reels with 0.123" min wall, 1.394" average ID, 0.263 lb/ft weight, and 5000' reel lengths (pull tape included for this size).