Description
Woulff bottle 500 ml GL 18/GL 25 is a compact multi-neck laboratory bottle for vacuum filtration, gas washing and related process applications. It is fitted with two side necks threaded GL 18 and a centre neck threaded GL 25, each provided with screw caps. The nominal volume is 0,5 l, with a height of 155 mm and an outer diameter of 85 mm, giving a small, stable footprint. Net weight is 0,394 kg. Supplied as 1 pc, the vessel accepts tubing and adapters typical of Woulff bottle setups. From manufacturer Witeg, it is suited to filtration and vacuum work in chemical synthesis, analytical sample preparation and teaching laboratories. The three-neck design enables simultaneous gas inlet, outlet and sampling or pressure equalisation under reduced pressure. It serves as a filter bottle, classic Woulff bottle or vacuum bottle in multi-port workflows that require dependable threaded necks and consistent dimensions for compact apparatus assembly.
This article is part of Laboratory glass bottles, in Bottles & containers.
Key features
- Pack size: 1 pc
- Nominal volume: 0,5 l
- Height: 155 mm
- Outer diameter: 85 mm
- Side necks: 2 × GL 18
- Centre neck: GL 25
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Questions about Woulff bottle 500 ml GL 18/GL 25
What is this article?
Woulff bottle 500 ml GL 18/GL 25 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Laboratory glass bottles, inside Bottles & containers, in Matériel de laboratoire.
A laboratory glass bottle is borosilicate or soda-lime, with a stated capacity and a neck for a screw cap or a ground stopper. Glass is the choice when the liquid attacks a plastic, or when the bottle will be heated or autoclaved.
A laboratory bottle is a closed container with a stated volume and a neck that takes a cap, a stopper or a dispenser. Borosilicate glass is the choice when the liquid is a solvent, or when the bottle will be heated or autoclaved. Polyethylene and polypropylene are the choice when the bottle must not shatter, or when hydrofluoric acid would attack glass. A narrow mouth pours. A wide mouth is for powders and for reaching the bottom. Laboratory ware of this kind is indexed under ISO laboratory glassware. Traceable volume sits with the BIPM and NIST Physical Measurement.
Which category should I open next?
The category is Bottles & containers. The sub-category is Laboratory glass bottles. The catalogue is Matériel de laboratoire.
Shelves beside this one are Plastic bottles (narrow & wide mouth), Sample containers & jars, Canisters & jerrycans, Wash bottles and Bottle accessories (pouring rings, dispensers, caps).
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.
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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.

