Description
Stopper with SVS hose coupling NS 19/26 is a laboratory glassware component that combines a standard ground joint with an integrated SVS hose coupling for secure tubing connections. The NS 19/26 joint ensures compatibility with common conical ground-glass apparatus used in distillation, reflux, and gas-handling setups. Its compact form, with a net weight of 0,013 kg and matching gross weight of 0,013 kg, suits modular assemblies where space and balance matter. Supplied as a single-piece unit, the stopper functions as a practical transition piece between ground-joint glassware and flexible hose lines. Produced by manufacturer Witeg, it supports routine laboratory operations that require reliable screw-coupling interfaces and normschliff adapters. The design facilitates quick attachment or detachment of tubing while preserving the seal integrity of the ground joint, making it useful in organic synthesis, sample preparation, and analytical workflows. Suitable for research, teaching, and industrial laboratories that rely on interchangeable glass components for vacuum, inert-gas, or liquid-transfer applications.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product type: Stopper with SVS hose coupling
- Joint size: NS 19/26
- Country of origin: Germany
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Questions about Suction tube, with cone, ST 19/26, with
What is this article?
Suction tube, with cone, ST 19/26, with 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. 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.
