Description
Multiposition closures for sample tubes in yellow provide a clear visual coding option alongside reliable polyethylene sealing for laboratory sample tubes. Designed for tubes with diameters of 10 mm, 12 mm, 13 mm and 16 mm, these caps allow laboratories to standardise on one multiposition closure style across several widely used tube sizes. The yellow colour supports quick identification of sample series, process steps or storage groups during preparation, handling and short-term holding. Made from polyethylene and supplied in packs of 1000 pieces, the closures from manufacturer Labbox are suited to busy research, QC and teaching environments that consume large numbers of tube caps. The multiposition format aids flexible seating on compatible tubes and helps maintain sample containment in routine workflows. A pack net weight of 1,000 kg reflects bulk packaging convenient for central stores and high-throughput benches. These yellow multiposition polyethylene closures fit readily into existing sample-tube systems and support organised, colour-coded laboratory plasticware practices.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
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Questions about Multi-position stopper for test tubes, yellow
What is this article?
Multi-position stopper for test tubes, yellow is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
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 Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, 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.

