Ready-to-assemble duct unit flush with the screed for cable routing, consisting of 3 system covers, two side profiles with attached flexible side wall made of metal mesh, floor covering profiles with H = 3 mm. For dry rooms indoors with dry-cleaned floors. With the appropriate system accessories also suitable for wet-cleaned floors. The scope of delivery includes 6 height-adjustable mounting brackets, 6 screed anchors and 3 cover joint seals for nominal duct widths 200, 300 and 400 or 6 cover joint supports for duct widths 500 and 600. The absolutely necessary leveling units (note the leveling height) for the cover support 500 and 600 are not included in the scope of delivery, please order separately. The duct covers are pre-assembled with locking springs up to and including nominal width 400.