Graduated distillation receiver with a 4mm three way stopcock to permit solvent removal through the 10mm O.D. tube or return to distillation flask. Upper sampling port has a 2mm PTFE stopcock. The top outer and lower inner joints are the same size.

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℃