Description
Ground joint stopper, hexagonal, 10/19 is a conical laboratory stopper made from borosilicate glass LBG 3.3 for standard taper joints of size 10/19. The hexagonal head gives a firm grip for insertion and removal while the conical ground body seats cleanly in matching flasks, adapters and reaction vessels. Offered as a single piece with a net weight of 0,009 kg, it is a practical replacement or spare for everyday glassware sets. Borosilicate LBG 3.3 glass is the established material choice for reusable laboratory stoppers that must tolerate typical thermal cycling and chemical exposure in analytical and preparative work. This stopper from manufacturer Labbox is intended for closing ground-joint apparatus during synthesis, distillation, extraction and sample handling where a glass-to-glass seal is preferred. The compact 10/19 format suits small flasks and microscale assemblies common in teaching and research laboratories. Its simple conical design integrates directly with existing NS joint systems without additional fittings, supporting reliable routine use across organic, inorganic and general chemistry workflows.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Joint size: 10/19
- Head design: Hexagonal
- Form: Conical
- Material: Borosilicate glass LBG 3.3
- EAN: 8434868061194
- GTIN: 08434868061194
- Technical Information Sheet:
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Questions about Hollow stopper, hexagonal head, LBG 3.3, 10/19
What is this article?
Hollow stopper, hexagonal head, LBG 3.3, 10/19 is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
