Description
DURAN® screw connection cap with central bore is a GL 45 open screw closure manufactured from red polybutylene terephthalate (PBT) for laboratory bottles. A PTFE-coated silicone gasket based on peroxide-crosslinked silicone delivers high sealing performance and greater chemical resistance than conventional polypropylene closures. The central opening supports aseptic reagent dispensing or culture sampling with a syringe and needle while remaining fully compatible with standard GL bottle threads. A matching red ETFE pouring ring is available separately to enable clean, drip-free working. Supplied as a single piece from manufacturer Duran/DWK Life Sciences, this robust PBT cap is intended for routine connection and sampling tasks on GL 45 laboratory glassware. Its open design with a defined central bore makes it suitable for controlled liquid transfer and aseptic handling workflows in research and quality-control environments where reliable sealing and chemical durability are required.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Thread: GL 45
- Material: Polybutylene terephthalate (PBT)
- Colour: Red
- EAN: 4032051063167
- Technical Information Sheet:
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Questions about DURAN® Open Topped Screw Cap, central aperture, PBT, red
What is this article?
DURAN® Open Topped Screw Cap, central aperture, PBT, red is the article on this page. Luminix Health distributes DWK Life Sciences 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. Delivery across Europe, two to five days when in stock. 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.