All-purpose vacuum GAS 400 A. When fine or coarse dust is generated during work, a vacuum cleaner is needed that ensures good visibility by keeping the work area dust-free, without a clogged filter slowing down the job. Our GAS 400 A Professional saves time by keeping the filter free from clogs thanks to Bosch's exclusive automatic filter cleaning technology (AFC). Its strong, consistent airflow allows for faster completion of tasks. Dust disposal is also easier and quicker with the Bosch GAS 400 A Professional, thanks to the hose-free container and the independent, tip-resistant head. The Bosch GAS 400 A Professional can vacuum most materials, including wet or dry and fine or coarse dust. Its sustained strong suction power ensures highly efficient dust extraction, allowing work to be completed more quickly. 1 x main filter (2 608 000 889). 1 x hose (2 608 000 885). 1 x combo PT adapter (2 608 000 886). 1 x combo brush nozzle (2 608 000 887). 1 x curved suction pipe (2 608 000 769). 2 x disposal bags (2 608 000 888).