Description
Seals for screw caps with hole are silicone rubber inserts sized for GL 25 closures and tubing or probe diameters from 7,5 to 9,0 mm. These flexible seals restore a reliable interface when screw caps are used with a central opening for lines, sensors or sampling accessories on laboratory bottles and containers. Silicone rubber offers chemical resilience and elasticity suited to repeated fitting in everyday labware assemblies. Each pack contains 2 pieces and weighs 0,002 kg, making it convenient for targeted replacement of worn or missing seals without overstocking. Produced by manufacturer DWK Life Sciences, the seals support secure connections on GL 25 screw-cap systems used with bottles, tins and related vessels. They are intended for laboratory glass, vessels and consumables setups where hose connectors, probes or similar accessories pass through a pierced screw cap. By matching the stated diameter range, the seals help maintain alignment and sealing performance around the opening during routine handling, media work and instrument coupling in research and analytical laboratories.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 2 pc(s)
- Product type: seals for screw caps with hole
- Material: silicone rubber
- Thread size: GL 25
- Diameter range: Ø 7,5–9,0 mm
- Weight: 0,002 kg
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Seals for screw caps with hole, Silicone rubber, GL 25, Ø 7.5-9.0 mm, 2 unit(s)
What is this article?
Seals for screw caps with hole, Silicone rubber, GL 25, Ø 7.5-9.0 mm, 2 unit(s) 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?
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.