This furcation tube is designed for the protection of 250µm, 400µm and 900µm coated fibers. It accepts one up to 900µm diameter fiber. The structure is an 3.0mm outer PVC jacket, Aramid yarn, and an inner tube. Inner tube O.D.: 1.8mm. Inner Tube I.D.: 1.1mm. Inner tube has a pull string pre-installed. Outer PVC jacket is red colored.