Description
Gas distribution tube type A, Ø 25 mm, porosity 1, height 250 mm is a borosilicate 3.3 laboratory accessory designed for controlled gas introduction and fine dispersion into liquids. It features a centred cup of 25 mm diameter equipped with a VitraPOR® filter plate of porosity grade 1, producing a finer bubble pattern than coarser frits while remaining suitable for everyday sparging and aeration tasks. The 250 mm height offers convenient immersion for typical laboratory vessels. Borosilicate 3.3 glass provides chemical resistance and thermal stability appropriate for aqueous systems and many organic media. Available from manufacturer ROBU - Stereon, this gas distribution tube supports synthesis work-up, degassing, gentle agitation by gas stream and reaction or culture monitoring where an all-glass sparger is preferred. Porosity 1 balances bubble size and flow resistance for moderate gas rates. The centred filter plate ensures uniform release across the cup surface, aiding consistent mass transfer. Supplied as one piece, it fits standard laboratory setups that require inert, metal-free gas distribution without sterility or dual-use restrictions.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 1 pc
- Type: A
- Cup diameter: 25 mm
- Porosity: 1
- Height: 250 mm
- Material: Borosilicate 3.3
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Questions about Gas Distribution Tube, Type A, Ø 25 mm, Por. 1, H 250 mm
What is this article?
Gas Distribution Tube, Type A, Ø 25 mm, Por. 1, H 250 mm is the article on this page. Luminix Health distributes ROBU - Stereon for laboratory use. It sits in Sintered glass filter plates & discs, inside Filtration, in Lab consumables.
A sintered glass filter is a disc of fused glass particles with a porosity grade, often 0 to 5, from coarse to fine. It is cleaned and reused. The porosity number, not a micrometre guess, is the specification. Hydrofluoric acid and strong alkali attack the glass.
Filtration holds back what is larger than the pores and lets the rest through. Paper is the ordinary laboratory filter. A membrane has a stated pore size and a polymer that must survive the solvent. A syringe filter is that membrane in a housing on a syringe. Glass fibre takes a higher dirt load. Ultrafiltration holds back macromolecules and passes salts. The pore size, the chemical compatibility and the volume are the three choices. Laboratory apparatus around filtration is indexed under ISO laboratory apparatus.
Which category should I open next?
The category is Filtration. The sub-category is Sintered glass filter plates & discs. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Syringe filters, Filter cartridges & capsules, Membrane filters, Glass & quartz fibre filters, Bottle-top & vacuum filtration units, Ultrafiltration & concentrators, Filtration accessories, Extraction thimbles and Dialysis tubing & devices.
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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.