Description
Rotilabo® stoppers made of natural rubber feature a bottom diameter of 5 mm, a top diameter of 9 mm, and a height of 20 mm for reliable sealing of small to intermediate laboratory openings. The natural-rubber construction yields an elastic, tapered plug suited to flasks, tubes, and other vessels used in routine chemical and biological workflows. These stoppers support temporary closures, sample holding, and general vessel management on the bench. A pack of 100 pc(s) from manufacturer ROTH SELECTION provides ample stock for teaching labs, research groups, and shared preparation rooms that consume stoppers regularly. Clear dimensional data—bottom and top diameters plus height—simplify matching to neck sizes already in use. The format sits within standard stoppers, clamps, and plugs among laboratory glass, vessels, and consumables. Pack weight is 0,101 kg, keeping storage and handling straightforward. Rotilabo® natural-rubber stoppers remain a practical choice wherever dependable, reusable sealing accessories are required without added complexity or special grades beyond the stated specification.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Brand: Rotilabo®
- Material: Natural rubber
- Bottom diameter: 5 mm
- Top diameter: 9 mm
- Height: 20 mm
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Questions about Rotilabo®-stoppers made of nat. rubber, Ø bottom 5 mm, Ø top 9 mm, H 20 mm
What is this article?
Rotilabo®-stoppers made of nat. rubber, Ø bottom 5 mm, Ø top 9 mm, H 20 mm is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
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 Labware.
Shelves beside this one are Screw caps & closures, Ground-joint glass stoppers, Lids & seals and Closures (other).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.