U-Shaped Drying Tubes With Two Glass Stopcocks – Set Of Three – No. 1

Set of three U-shaped laboratory drying tubes, each with two ground-glass stopcocks, glass handles and side connections. Schwartz-type design used for gas drying. Signs of use and storage, with discolouration around the ground joints; some pieces have deposits and retaining bands. Detail props for laboratory and chemical industry sets. The three numbered sets contain nine similar items in total, which can be combined into a grouped arrangement. Operation and leak-tightness have not been tested.