Description
Sealing ring/Rotulex 35/20 is a laboratory sealing accessory intended for Rotulex spherical joint connections on glass apparatus. Sized to the 35/20 designation, the ring functions as a dedicated sealing element within the broader range of laboratory stoppers and seals. It is supplied as one piece and is suitable for assembling or servicing glassware that uses Rotulex-type joints to link flasks, adapters, condensers and similar components. This sealing ring from manufacturer LAT sits in the category that includes norm stoppers, cork, rubber, silicone and cellulose stoppers, offering a straightforward spare part for daily laboratory practice. Research, teaching and analytical laboratories that maintain Rotulex 35/20 joints can select this ring when renewing seals or completing new assemblies. The explicit 35/20 marking aids correct pairing with matching joint dimensions already in stock. Single-piece packaging supports tidy inventory control and simple one-for-one replacement of used sealing rings without unnecessary surplus.
This article is part of Lids & seals, in Stoppers, caps & closures.
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Questions about Sealing ring/Rotulex 35/20
What is this article?
Sealing ring/Rotulex 35/20 is the article on this page. Luminix Health distributes LAT for laboratory use. It sits in Lids & seals, inside Stoppers, caps & closures, in Matériel de laboratoire.
Lids and seals are the covers of dishes, jars and tanks: a snap lid, a sealing film, a gasket. The seal is doing the work. A lid that only rests on the rim does not contain a volatile liquid.
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 Lids & seals. The catalogue is Matériel de laboratoire.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Ground-joint glass stoppers 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.

