Ideally suited for use with jointedware and other glassware having the shorter C length ground glass sockets

Borosilicate glass for chemical durability and high temperature performance

Hollow-blown construction to reduce weight Side indentations to provide finger grip
Top of stopper is flat or slightly concave allowing them to be stood on end and avoid contamination of the ground surface


Cone size Overall height mm

10/13 - 42
12/14 - 47
14/15 - 50
19/17 - 55
24/20 - 61
29/22 - 68
45/25 - 84

Ideally suited for use with jointedware and other glassware having standard ground glass sockets

Borosilicate glass for chemical durability and high temperature performance
Hollow-blown construction to reduce weight
Side indentations to provide finger grip
Top of stopper is flat or slightly concave allowing them to be stood on end and avoid contamination of the ground surface

Ideally suited for use with volumetric flasks etc.
Lower closed end of stopper features a 'drip-tip' to ensure adhered liquid is returned to the flask

Hexagonal head prevents the stopper from rolling and provides a good grip

Flat head allows stopper to be stood on end thus preventing contamination of the ground surface
Hollow blown to reduce weight