Description
NS stopper made of polyethylene (PE-HD) NS 19/26 is a laboratory stopper produced from high-density polyethylene for standard ground joints of size NS 19/26. This PE-HD component provides a practical sealing solution for flasks, adapters and other glassware commonly used in chemical, analytical and educational laboratories. The high-density polyethylene material delivers mechanical robustness together with resistance to many routine laboratory chemicals, supporting reliable closure of apparatus during storage, reactions or sample handling. Each item is supplied as 1 pc and fits the established NS 19/26 taper dimensions for interchangeable joints. Available from manufacturer Hecht, the stopper integrates easily into existing glass setups and helps reduce evaporation or contamination risks. Its lightweight yet durable construction facilitates repeated insertion and removal without the fragility associated with glass alternatives. Suitable for research, quality-control and teaching environments, the NS stopper contributes to efficient workflow wherever standard European ground-joint connections require a secure, accessible seal. The PE-HD formulation ensures consistent performance under typical laboratory conditions while remaining simple to clean and reuse.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: NS stopper
- Material: High-density polyethylene (HDPE)
- Joint size: NS 19/26
- Polymer designation: PE-HD
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Questions about Stoppers of HDPE, interchangeable NS 19/26
What is this article?
Stoppers of HDPE, interchangeable NS 19/26 is the article on this page. Luminix Health distributes Hecht 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.