673 DLS Compressed Air Vacuum for unlimited start / stops per hour DLS Compressed Air Vacuum for unlimited start / stops per hour
520 Central Vacuum clleaningsystem with 40 suction points Central Vacuum clleaningsystem with 40 suction points
551 DS 6 Pocket Filter Dust Extractor for intermittend duty DS 6 Pocket Filter Dust Extractor for intermittend duty
640 DS 6 Cartridge Filter Dust Extractor for continous duty and automatic filter cleaning DS 6 Cartridge Filter Dust Extractor for continous duty and automatic filter cleaning