Torit Donaldson SDF 6 OD Downflow Portable Dust Collector - 1,600 CFM, Holds (6) cartridge filters. Total Filter Media Area: 618 square feet, Serial number: IG5331914=002. With checker board controller. Integrated 10 HP centrifugal fan with 460 volt, 3450 RPM, 60 Hz, 3-phase drive. Includes electric panel wired for 460 volt.