This inexpensive portable titration set features a 2mm straight stopcock with PTFE plug. The borosilicate glass buret is filled by pressure supplied by the rubber bulb. A small hole in the filling tube at the "O" line permits setting of the liquid level and excess titrant is returned to…

This inexpensive portable titration set features a 2mm straight bore stopcock. The borosilicate glass buret is filled by pressure through a tube extending from the bottle up inside the graduated tube. A small hole in the filling tube at the "O" line permits setting of the liquid level and…