Dust Collector, 1, 538 CFM Max Flow, 2 hp, 1 PhaseMfr #: 717520 More Suction: The Cyclone's two stage separation provides more working CFM than comparable horsepower single stage units Ease of Use: Double paddle manual cleaning system quickly cleans the pleated filter Efficient Filtering: Fine dust particles are filtered through pleated material that captures particles down to 1 micron Quick Emptying: Heavy debris is captured in a 30 gallon drum with quick release levers and independent casters