Stopcock has three sidearms sealed 90º apart. The solid glass plug has a "T" shaped bore so that any two or all three sidearms can be connected at one time. All sizes are supplied complete with a metal retaining device

If you need other size,please contact us by the leave a 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