Used 40 sq ft Stainless steel Bin Vent Dust Collector. 304 stainless steel housing. Set up for (9) 4-1/4" diameter x 48" long, bags filters (less bags & cages). Set up for pulse jet cleaning with (3) pulse jet mechanisms. 38" x 38" flange connection to mixer. Side access door for bags. Does not include blower. Last used at cereal processing facility.