Handles high dust volumes thanks to cyclone technology. Consistently high suction power through relief of the main filter. Convenient and safe transport due to stackable collection containers with compact dimensions and robust construction. Flexible operation depending on the application, with or without CT pre-separator. Large amounts of dust and shavings are no longer a problem. Neither for the main filter nor for the suction power. The pre-separator compatible with Festool CT mobile dust extractors captures up to 95% of the dust before it reaches the dust extractor. This relieves the main filter and guarantees consistently high suction power throughout the entire work process. Cyclone Systainer, VAB-20 collection container, Systainer tray, connection hose, disposal bag, container lid.