SEPARATORY FUNNEL SURE-GRIP W/27# JOINT & PTFE STOPCOCK
With shape of a cone and PTFE stopcock at bottom,and with a standard taper outer joint at top.

With shape of a cone and PTFE stopcock at bottom,and with a standard taper outer joint at top.
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.