9 x Glassco Class AS Automatic Burettes, Schell Bach with PTFE intermediate & PTFE needle valve stopcock, size 50ml, includes Richardson bulb, further info: https://www.labfriend.co.nz/isolab-automatic-burette-50010-ml-schellbach-clear-clas-blue-graduation-w-glass-stopcock-and-ptfe-valve-stem-stopcock-batch-certificate.
