Burettes

Stopcocks made of PMP. Plugs of PTFE with polished surfaces, turn easily. Insert with two seals. Art. No. 115799: For 25 ml tubes with an inner diameter of 7.75 ± 0.1 mm. Art. No. 115899: For 50 ml tubes with an inner diameter of 11.5 ± 0.1 mm.