The 100mm up/down elbow assembly is used to provide a vertical right - angled bend with standard 100mm straight ducting. It provides a simple method for directing fibres between different levels. It requires a standard joiner (Part No: TC1279-27, Telstra No: 035300514), or a slotless joiner (Part No: TC1279-248A) at each interface; which provides a smooth & strong joint.