The joiner is used to connect standard 300mm straight ducting with itself or any of the other 300mm components; with which it provides a smooth & strong joint. Typical other fittings are horizontal or vertical elbows, cross connectors, tees, etc., which require a standard joiner at each interface. The joiner is supplied with 2 x M10 cage nuts that allow for a quick connection to a duct mounting bracket.
Note: A 300mm slotless joiner is also available (Part No: TC1279-287A)