Borosilicate glass stopper with hexagonal head for improved grip.

• Cone Size: 14/23
• Overall Height: 56mm

Ground glass stopper supplied in European 'B' length joint sizes, making them suitable for use with any jointed glassware products with the same joint size.

• Ideally suited for use with Quickfit® jointed glassware and other glassware having ground glass joints.
• Complies to ISO 383 standard tapers
• Borosilicate glass for chemical durability and high temperature performance
• Hollow blown construction to reduce weight
• Hexagonal head prevents the stopper from rolling and provides good grip
• Top of the stopper is flat, allowing them to be stood on end and avoid contamination of the ground surface