With top spherical socket joint and lower standard taper inner joint.

Adapters with joint combinations other than those listed are available. Please contact us for details.

Adapter, Connecting, 35/20 Top Socket, Lower Inner joint would be available for selection

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

Be Made From G3.3 Borosilicate Glass

Annealing Point ------560℃

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

Softening Point------820℃