Used Donaldson Torit Pulse Jet Dust Collector, Model DF T2-4, Serial number IG520499-1. Approx. 904 sq ft. of filter area. 4 front load cartridges. 15 HP, 230-460V, 3 Ph blower mounted on top of cabinet. Pyramid type discharge hopper. Leg mounted. (Note: Cartridges not included) Previous use: Iron Oxide R&D Lab.