Used Alar Auto-Vac Sludge Dewatering Rotary Vacuum Filter System. Model 640. With 6 ft. dia. x 4 ft. long carbon steel drum. 75.4 sq. ft. nominal filtering area. Knife discharge. Manufacturer's estimated weight: 9200 lbs. Skid mounted unit with controls receiver tank vacuum pump cooling water recirculation system. Electrically set up for 3/60/230/460V. Additional information available upon request. Unit was built new late 2008/early 2009 used less than 2 years currently stored indoors at a processing facility. (DE Feeder shown in photos not included)