Description
Closure for wide-neck bottle 500 ml is a round, transparent PE-LD screw closure for laboratory wide-neck bottles with a GL 50 thread. Matched to the 500 ml bottle format, the part is specified with a height of 153 mm and an outer diameter of 77 mm, so it can be selected against existing bottle necks in the same size class. Low-density polyethylene keeps the closure light, with a net weight of 0,015 kg, while the transparent finish supports visual checks around the neck and sealing area during everyday handling. Supplied as 1 piece, it serves as a practical spare or replacement cap for wide-neck bottles used in sample storage, reagent transfer, media preparation and general bench work. From manufacturer Witeg, the closure aligns with laboratory screw-cap systems that rely on the GL 50 thread standard. The round PE-LD profile suits research, teaching and quality-control environments where wide-neck containers must be resealed quickly after opening. Confirm thread designation and outer diameter against the corresponding bottle before use to ensure a correct fit within established laboratory bottle fleets.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: PE-LD
- Thread size: GL 50
- Shape: Round, transparent
- Compatible volume: 500 ml
- Height: 153 mm
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Questions about Closure for wide neck bottle 500ml
What is this article?
Closure for wide neck bottle 500ml is the article on this page. Luminix Health distributes Witeg 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.


