Made of DURAN® glass. For determiningmolar masses and the valency of metals.The glass cylinder has a three-way stopcock connected to the bottom, and a GL25/8 threaded connector at the top. Theside arm connector has a GL 18/8 thread.The insert consists of a slidable rod,which has a fixed vessel for holdingsample on the lower end. Diameter of theglass cylinder: 50 mm; overall height:approx. 260 mm(without insert); overallwidth: approx. 100 mm; overall length ofthe insert: approx. 190 mm.