This elbow provides a method of diverting the 220mm duct system around objects. It can be used with a tee to feed a duct at 30 degrees to the main system. The elbow can be used in pairs to align ducts and other components with a 60mm offset. The elbow is connected to the 220mm duct using either a: standard joiner (Part No: TC1279-25, Telstra Part No: S 353/515) or a slotless joiner (Part No: TC1279-250A), which are available separately.