Description
neoChoice Steri stoppers for single use are disposable cellulose stoppers designed for the sterile closure of test tubes, Erlenmeyer flasks and culture flasks with a 20 mm neck. Air-permeable and bacteria-filtering, they support sterile working practice while allowing controlled gas exchange through the plug. The body measures 23 mm at the top diameter, 20 mm at the bottom diameter and 41 mm in height, providing a secure seat in standard 20 mm laboratory necks. Autoclavable up to 200 °C, the stoppers can be processed in routine sterilisation cycles used in microbiology, cell culture and everyday wet-lab procedures. Available in a pack of 500 pieces from manufacturer neolab - Labor, these single-use Zellstoff stoppers give laboratories a convenient disposable alternative to reusable closures when contamination control and fast changeover are important. Typical uses include closing culture vessels, reagent tubes and flasks in research, teaching and quality-control environments. The cellulose construction delivers breathability together with a bacteria-filtering barrier on common European glassware formats.
This article belongs on Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 500 pc(s)
- Material: cellulose
- Neck size: 20 mm
- Top diameter: 23 mm
- Bottom diameter: 20 mm
- EAN: 4058072032616
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Questions about neoChoice Steri-Stopfen für den Einmalgebrauch, für Hals 20 mm
What is this article?
neoChoice Steri-Stopfen für den Einmalgebrauch, für Hals 20 mm is the article on this page. Luminix Health distributes neolab for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Matériel de laboratoire.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
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 Rubber & silicone stoppers. The catalogue is Matériel de laboratoire.
Shelves beside this one are Screw caps & closures, Ground-joint glass 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.