Stoppers for Conical Ground Joints

These standard taper hollow stoppers are made from borosilicate glass 3.3 and have a hexagonal head.

• Excellent chemical resistance
• High thermal resistance, minimal heat expansion results in high resistance to temperature changes
• Hexagonal head allows easy release and removal of the stopper

For the safe and secure closure of flasks, bottles, tubing and other laboratory apparatus.

 : DIN 12252

 : Available with flat or pointed bottom.