Unused 16 cu. ft./hr single-screw gravimetric feeder manufactured by Acrison, Model #402X-500-100-BDF-1.5-H. 304 stainless steel construction with 6 cu. ft. feed hopper. Driven by 1 HP electric motor. Estimated weight of 1,800 lbs. Tag #19-CN-855. Previously designated as Silica Dosing Device.