Fein 9-55-13 PE 9 Gallon Pneumatic/Electric Auto Start Dust Extractor Auto Start for dust extraction when connected to your Electric or Pneumatic tool 2-stage motor with bypass cooling for a longer life Quiet operation at only 57.8 db 7.3-gallons solid, 6.8-gallons fluid capacity 16-foot long hose, and a fabric boot filter collects dust down to 5 microns