Round bottom, HEAVY WALL single short neck flask with a spherical socket joint. Flasks having a 35/20 socket joint are used as replacements for the collection flask on rotary evaporators.

If you need any other size of ground joint,please contact with us by the leave a message.

Be Made From G3.3 Borosilicate Glass

Annealing Point ------560℃

Linear Coefficient of Expansion------ 32×10-7/℃

Softening Point------820℃