Description
Seal for screw caps with hole is a silicone rubber sealing insert for laboratory screw caps that incorporate a central opening. Sized for GL 18 thread systems, it is specified for openings of Ø 9,0–11,0 mm, allowing tubing, probes or similar accessories to pass through while the cap remains closed around the seal. Silicone rubber provides the elasticity needed for a snug fit against the cap and the inserted component, supporting everyday bottle and vessel work in analytical and preparative settings. This compact accessory from manufacturer Lenz belongs with seals, hose connectors and related container fittings used across laboratory glassware and plasticware assemblies. It is supplied as 1 pc at a unit weight of 0,003 kg, making it straightforward to stock as a spare or replacement part. In practice the seal helps keep capped containers tidy and more leak-resistant whenever controlled access through a holed screw cap is required, without altering the basic GL 18 geometry of the cap itself. Suitable for routine labware inventories focused on bottles, tins, canisters and similar vessels.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: Seal for screw caps with hole
- Material: Silicone rubber
- Thread size: GL 18
- Opening diameter: Ø 9,0–11,0 mm
- Weight: 0,003 kg
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Questions about Seal for screw caps with hole, Silicone rubber, GL 18, Ø 9.0-11.0 mm, 1 unit(s)
What is this article?
Seal for screw caps with hole, Silicone rubber, GL 18, Ø 9.0-11.0 mm, 1 unit(s) is the article on this page. Luminix Health distributes Lenz 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.