Riser Duct or Riser Innerduct is a flexible, non-metallic, corrugated raceway used for effective interior cable and fiber optic management. Riser meets UL- (1666) standards safety test for flame propagation height of electrical and optical fiber cables installed vertically. Connector 1 Type: LC Duplex, MPO-24 Male, SC Duplex & More. Achieve fast and reliable fiber optic distribution in high-density data centers with our tethered enclosures, featuring pre-terminated connections for efficient deployments. Corning has a variety of hardware solutions including ethernet fiber switches, panels, racks. Premier Corrugated HDPE is manufactured from High Density Polyethylene (HDPE) and is intended to be placed inside of existing innerduct. It's ideal for pulls under 1000 ft. and is designed to reduce surface contact when pulling cable. Available in various sizes OD, (50mm to 250mm). This lightweight product offers maximum flexibility, and allows for.