Description
Push-in stoppers LDPE 11–13 mm are ribbed, neutral closures for disposable test tubes with an outer diameter of 11 to 13 mm. Made from low-density polyethylene (LDPE), they provide a practical push-in seal for routine laboratory tube handling where a simple, disposable stopper is required. The ribbed profile aids grip and seating in matching glass or plastic single-use tubes. Supplied in a pack of 1000 pieces from manufacturer Witeg, these stoppers suit high-throughput bench work, sample storage preparation, and general wet-lab organisation. Neutral colouring keeps visual interference low when tubes are inspected or labelled. With a net weight of 0,503 kg per pack, the unit is convenient for stockrooms that need bulk LDPE closures in the 11–13 mm range. They are intended for disposable test-tube applications rather than specialised pressure or sterile barrier systems, offering straightforward everyday sealing for standard laboratory tubes.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1000 pc(s)
- Material: Low-density polyethylene (LDPE)
- Diameter range: 11–13 mm
- Design: Ribbed, neutral
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Questions about Push-in plugs LDPE 11-13mm
What is this article?
Push-in plugs LDPE 11-13mm is the article on this page. Luminix Health distributes Witeg 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. 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.