High-Impact PVC Channel Section Lets You Create Custom Fiber Cable Routing Schemes The SmartRack SRFC5STR48 is a straight channel section that carries fiber optic cables horizontally through your fiber routing system. Made from durable, lightweight PVC material, this straight section connects to other sections or fittings via Tripp Lite's SRFC5CPL5 couplers (sold separately) using their included hardware to help keep your fiber optic cable bundles neat and organized. Screws and nuts tighten by hand with no tools required to complete a professional, finished look in your data center, network closet or industrial space.