The Delta 50720 is a 1 HP Dust Collector 650 CFM. The 1HP TEFC induction motor allows for long-lasting, smooth performance. A 1-micron top filter bag provides superior fine dust filtration. Clear disposable bottom bags are included for fill-and-toss convenience. A Finned aluminum motor housing keeps the motor running cool during long periods of use. The curved steel impeller produces maximum air velocity for efficient dust collection. The sturdy steel cabinet-style base with four swivel casters for moving from machine to machine or for storing out of the way.