( approx 1800 CFM ) model 900, series 343 Dynamic Air Modu-kleen bin vent cartrige pulse jet filter . Unit has 9 filter elements. Weight of unit is 1,000 lbs. Dimensions are 63" x 63" x 57" tall. Unit is designed for side removal of cartridges. Carbon steel construction. Unit has two doors 180° apart. No timer or blow pipe header. Fan not included.