Description
Funnel 70 mm DURAN long stem is a laboratory glass funnel made from DURAN tubing for liquid transfer and gravity filtration at a larger bowl size. Outer diameter is 70 mm, stem length 150 mm and stem outer diameter 6 mm, allowing efficient pouring into flasks, cylinders and other narrow-neck receivers while the longer stem directs flow with control. Constructed from borosilicate glass 3.3, it offers the chemical resistance and thermal robustness expected in daily analytical practice. The long-stem profile supports analysis-funnel applications, filter-paper set-ups and general wet-chemistry workflows in teaching, research and quality-control laboratories. Offered as a single piece from manufacturer Witeg, the funnel is identified with the registered DURAN trademark linked to the tubing used in production. Net weight is 0,034 kg, remaining practical for frequent bench handling. Clear dimensional specification of bowl and stem aids reproducible laboratory routines for sample preparation, solvent transfer and collection of filtrates across standard glassware assemblies.
This article belongs on Funnels (plastic, glass & steel), in Funnels.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Trademark: DURAN ®
- Outer diameter: 70 mm
- Stem length: 150 mm
- Stem outer diameter: 6 mm
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Questions about Funnels, with long stem, made from DUR
What is this article?
Funnels, with long stem, made from DUR is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Funnels (plastic, glass & steel), inside Funnels, in Matériel de laboratoire.
This is the ordinary funnel, in plastic, glass or steel, used to guide a liquid or a powder into a narrower mouth. The cone angle, the stem bore and the material are the choices. It does not, by itself, filter.
A funnel guides a liquid or a powder into a narrower mouth. A filter funnel holds a paper. A Büchner funnel is the flat perforated plate used with vacuum. A separating funnel has a stopcock so two liquid layers can be run off one at a time. A dropping funnel adds a reagent slowly into a reaction. The bore and the stopcock are the parts that matter. This glassware is listed under ISO laboratory glassware.
Which category should I open next?
The category is Funnels. The sub-category is Funnels (plastic, glass & steel). The catalogue is Matériel de laboratoire.
Shelves beside this one are Büchner & filter funnels, Dropping funnels, Separating funnels and Powder funnels.
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.