Description
VitraPOR® glass filter plate in borosilicate 3.3 is a round, centred sintered disc for laboratory filtration assemblies. The plate measures 240 mm in diameter with porosity grade 4 and a thickness of 19,0 mm (tolerance ± 4,0 mm). An untreated surface supports standard filtration and gas-dispersion duties where a defined pore structure in durable glass is required. Manufactured by ROBU - Stereon, the disc is intended for integration into custom glassware, filter holders, or apparatus that call for a large-format porous plate. Borosilicate 3.3 offers the thermal and chemical resistance expected in demanding laboratory environments. Supplied as a single piece, the component is suited to preparative setups, process development, and specialised filtration hardware. The centred round geometry aids alignment during mounting. Porosity 4 provides a defined intermediate pore range for applications that need controlled flow and particle retention without additional surface coatings or treatments.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 1 pc
- Product type: VitraPOR® glass filter plate
- Material: Borosilicate 3.3
- Diameter: 240 mm
- Porosity: 4
- Thickness: 19,0 mm ± 4,0 mm
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Questions about Filter Disc, centered, 240 mm, Por. 4 Thickness 19 mm ± 4.0 mm
What is this article?
Filter Disc, centered, 240 mm, Por. 4 Thickness 19 mm ± 4.0 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.
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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.