Description
Plastic stoppers, PE, DIN 12254 with standard ground joint 14/23 are octagonal laboratory stoppers designed for reliable sealing of glassware with matching standard taper joints. Made from polyethylene (PE), they offer a practical, lightweight alternative for routine laboratory closures where chemical resistance and convenient handling matter. The octagonal head improves grip during insertion and removal, supporting safe, controlled use at the bench. Conforming to DIN 12254, the 14/23 standard ground joint ensures compatibility with widely used flasks, bottles and apparatus in chemistry, biology and analytical workflows. These stoppers from manufacturer Lenz come in a pack of 10 pieces, making them suitable for teaching laboratories, research groups and quality-control settings that need consistent consumable supply. At approximately 0,001 kg each, they add minimal bulk while helping protect contents from evaporation and contamination. Ideal for everyday sealing tasks on standard taper joints, they integrate smoothly into general laboratory glassware setups.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Material: PE
- Standard: DIN 12254
- Standard ground joint: 14/23
- Design: Octagonal
- Weight: 0,001 kg
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Questions about Plastic stoppers, PE, DIN 12254, standard ground joint 14/23, octagonal
What is this article?
Plastic stoppers, PE, DIN 12254, standard ground joint 14/23, octagonal is the article on this page. Luminix Health distributes Lenz for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
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 Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone 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.

