Description
Calcium chloride tubes U-shaped with stopper NS 19/26 and a length of 150 mm are classic laboratory drying tubes used to hold granular desiccants such as calcium chloride for gas drying or moisture protection of sensitive samples. The U-form geometry provides a compact path for gas flow while the ground NS 19/26 stopper seals the open ends securely during use or storage. Supplied as a single piece with a net weight of 0,108 kg, the tube is intended for routine analytical and preparative work where controlled drying is required. These U-shaped calcium chloride tubes from manufacturer Witeg fit standard laboratory setups that employ NS 19/26 joints and are commonly placed in gas trains, drying trains or as protective traps ahead of sensitive apparatus. The 150 mm length offers a practical balance between desiccant capacity and bench-space requirements. Clear glass construction allows visual inspection of the packing and any colour-change indicators that may be used with the desiccant. Ideal for teaching laboratories, quality-control benches and research environments that rely on simple, reusable drying hardware.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Design: U-shaped
- Stopper: NS 19/26
- Length: 150 mm
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Questions about Drying tubes U-shaped stoppers ST 19/26 150 mm
What is this article?
Drying tubes U-shaped stoppers ST 19/26 150 mm is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
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 Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.