Description
Conical cork stopper with height 20 mm, top diameter 11 mm and bottom diameter 8 mm is a natural cork laboratory stopper intended for sealing glassware and vessels. The tapered conical profile allows straightforward insertion into bottle or flask necks while providing a compressible fit typical of cork material. Manufactured from cork, the stopper belongs to the standard cork stopper category used across general laboratory work for temporary closures. Supplied as a single piece, the dimensions follow the conventional height × upper diameter × lower diameter format of 20 × 11 × 8 mm. This item from manufacturer IDL GmbH suits routine handling of reagents, samples or solvents where a simple, removable seal is required. Cork’s inherent elasticity supports repeated use on matching neck sizes without rigid threading. The stopper integrates easily into everyday bench protocols involving flasks, bottles and similar containers that accept conical cork closures. Precise sizing ensures compatibility with common laboratory glass necks of corresponding diameter ranges.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Cork
- Shape: Conical
- Height: 20 mm
- Top diameter: 11 mm
- Bottom diameter: 8 mm
- Technical Information Sheet:
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Questions about Cork stopper, H x top Ø x bottom Ø: 20 x 11 x 8 mm, tapered
What is this article?
Cork stopper, H x top Ø x bottom Ø: 20 x 11 x 8 mm, tapered is the article on this page. Luminix Health distributes IDL GmbH 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?
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.