SOLVENT STILL HEAD
With 14/20 outer joint and a 4mm PTFE stopcock at the side Syringe port ,through which solvent remove from the flask.
Solvent is drained through 2mm T-bore PTFE stopcock.
The drainage arm has a 14/20 inner joint.
Distance between stopcocks is 100mm.
Laboy glass flasks are heavy wall designed,made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glasss and annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling.