Could hold the 6mm glass rod or thermometer

Available Ground joint:

24/40 Ground joint

29/42 Ground joint

With a compression cap and Viton® O-ring to form a vacuum tight seal. To use it as a syringe port, simply replace the O-ring with Teflon -lined septum. Cap accommodates 5.0 - 7.5mm O.D. thermometer. Supplied with one PTFE cap and one Viton O-ring.

If you need any other size or other Ground joints,please contact with us

Handle blowing by the glass blowers,not made by the Pouring

If the item will be broken in the delivery process,we will send the replacement to  you right now.

Be Made From G3.3 Borosilicate Glass

Annealing Point ------560℃

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

Softening Point------820℃