Lower half of flask has a jacket permitting heating or cooling of the contents with fluid from a constant temperature bath.

The unique design of the Chem-Drain valve incorporates a PTFE plunger that allows the contents of the flask to drain directly through the bore of the plunger. When closed, the tip of the PTFE plug seals into the lower radius of the flask, avoiding the dead space normally associated with standard stopcock drains. This feature permits total mixing and drainage of the contents of the flask.

If you need any other size or ground joint,please contact us by the leave an message

Be Made From G3.3 Borosilicate Glass

Annealing Point ------560℃

Linear Coefficient of Expansion------ 33×10-7/℃

Softening Point------820℃

All of our glassware made by the glass blowers,not the poor glass,Please do not make the comparison with other's glass