Description
Ground joint stopper NS 19/26 is a plastic laboratory stopper sized for standard ground glass joints NS 19/26. It is made from low-density polyethylene (LDPE) and combines an octagonal grip with a red insert plate for secure handling and clear visual identification. This design supports reliable sealing of flasks, adapters and other ground-joint glassware in routine chemical, analytical and teaching laboratory work. The LDPE body is lightweight yet robust enough for repeated fitting and removal, while the octagonal handle improves grip when opening or closing joints without tools. Offered by manufacturer Marienfeld, the stopper provides a practical polyethylene alternative where glass stoppers are not required. Pack size is 100 pieces, matching typical laboratory restocking needs for this joint size. Suitable for general bench use whenever a durable PE Normschliff stopper for NS 19/26 is needed.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Joint size: NS 19/26
- Material: Low-density polyethylene (LDPE)
- Grip: Octagonal grip with red insert plate
- Type: Plastic ground joint stopper
- EAN: 4250317313560
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Questions about Standard ground joint stoppers NS 19/26,
What is this article?
Standard ground joint stoppers NS 19/26, is the article on this page. Luminix Health distributes Marienfeld 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. Articles in stock ship within 2–5 business days. 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.