The separatory funnel is also known as separation funnel, separating funnel, or colloquially sep funnel, is a piece of laboratory glassware
With shape of a cone and PTFE stopcock at bottom,and with a standard taper outer joint at Top.
Supplied with a ground taper glass stopper,to ensure the leak-free sight during shaking.It is usually fixed and supported by a support ring and a finger clamp.
Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree Celsius