Assembly is easy using push fit flat channel connectors and the system is held to the wall or ceiling using quick-fit support clips. The ducting can be terminated in a conventional wall grille or a choice of horizontal or soldier course airbricks, and is then simply concealed behind plasterboard. Some applications call for traditional galvanised sheet steel ducting. For these applications Xpelair Profile 25M metal flat ducting can be used. Profile 25M measures 230 x 25mm and is also available in an extensive range of interconnecting components. With a depth of only 25mm it is ideal for installation between the floor/ceiling slab and the plasterboard finish. It can be fixed to the ceiling/wall by suitable fixings through the continuous flange on either side. All joints should be sealed with a sealing compound. Profile 60 flat plastic duct system (204mm x 60mm) is also available for installations where a particularly low profile duct is not required, or where longer duct runs are required. Particularly suitable for use with Premier DX180, DX200/400 and CF20/40 modelsSimple push fit and easily concealed