Flat angle lower part, inside corner for floor duct with brush strip BKBD 300x80. Flat angle lower part, inside corner for floor duct for dry rooms indoors with dry-maintained floors. The lower part consists of a floor trough sheet with pre-assembled side profiles and is supplied including device carriers, duct connectors and assembly protection cover. The floor stop profiles pre-assembled on the room side have an adjustment range between 0 - 25 mm and correspond to the possible floor covering thickness to be applied. Tested according to DIN EN 50085-2-2.