This elbow prov ides a method of diverting the 6 00mm duct system around objects. It can be used with a 6 00mm tee (Part No: TC1279 - 412) to feed a duct at a 45 o angle to the main system. The elbow can also be used in pairs to align ducts and other components with an offset. A join er (Part No: TC1279 - 410A ) is used at each interface, to produce a smooth and strong joint. They are available separately.