Used 3HP Union Process 1-S Series Laboratory Attritor. Tank capacity 1.5 gallon, working capacity 0.8 gallons. Media volume 1.0 gallons. Jacket tank approximate 7-1/2" diameter x 8-1/2" deep. Missing agitation shaft. Driven by a 3hp, 3/208-230/460 volt, 1725 rpm xp motor, thru Reeves adjustable speed gearbox. Mounted on painted carbon steel frame.