Thunberg tube has a TS hollow stopper with a hole and a side tube. The stopper can be rotated to produce a valve action. When the tube is tilted, the contents of the 2 ml size reservoir can be emptied into the main tube.
Customer Log-in
Click to shop partner's catalogs
Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.