Blind upper part for closed floor duct BKG300 with a length of 1 m. Blind upper part for floor duct for dry rooms indoors with dry-maintained floors. The upper part consists of an upper part sheet. The possible floor covering thickness is between 0 - 25 mm. The electrical connection of the upper part with the lower part can optionally be implemented using earthing springs. Tested according to DIN EN 50085-2-2.