The OMN-NPT18 has a length of 18; and a diameter of 1.5. This pipe is threaded on both ends and used to extend flat panel ceiling mounts. It is equipped with an integrated cable management to hide wires and suitable for the OMN-DCM250 and the OMN-SCM125. This extension pipe will replace the existing pipe and cannot be used as extra pipe. To install this extension pipe the OMN-PFC is required. Cable tidy facility. Black finish. Size H45, W3.8, . Manufacturers 5 year guarantee.