Description
Lamella stoppers for test tubes with an inner diameter of 15-16 mm are polyethylene closures designed for effective sealing of laboratory reagent tubes. Large flanges on the stoppers rest firmly against the tube walls and provide a leak-proof seal. The ribbed, conical shape guarantees reliable closure and secure seating. Colour-coded in red, these stoppers enable quick and practical identification of tube contents during laboratory work. Manufactured from polyethylene by ISOLAB Laborgeräte, they are intended especially for test tubes and support organised sample handling through clear visual coding. Each unit is supplied as a pack of 100 pieces, suitable for routine use in analytical and research laboratories. The distinctive red colour forms part of a broader range that also includes clear, blue, yellow and green variants, allowing laboratories to match stopper colour to sample type or experimental series. Their flange design and conical profile make them a practical choice for everyday tube sealing tasks where leak protection and easy recognition matter.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Material: Polyethylene
- Colour: Red
- Inner diameter: 15-16 mm
- Shape: Ribbed conical with large flanges
- EAN: 4250362632050
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Questions about stoppers for tubes - flange - for 15/16 mm tube diameter - P.E - red
What is this article?
stoppers for tubes - flange - for 15/16 mm tube diameter - P.E - red is the article on this page. Luminix Health distributes ISOLAB 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.