Description
VitraPOR® glass filter plate with a diameter of 210 mm and porosity grade 4 is a round, centred borosilicate 3.3 disc for laboratory filtration. The plate thickness is 19,0 mm with a tolerance of ± 4,0 mm, and the surface is left untreated to support consistent particle retention and fluid passage in frit-based setups. Made from chemically and thermally robust borosilicate glass 3.3, this filter plate from manufacturer ROBU - Stereon suits clarifying and preparative work where controlled permeability is required. Porosity 4 provides a fine pore structure appropriate for many analytical and process filtrations that rely on sintered glass media. The generous 210 mm diameter offers a large working area for higher-volume apparatus or larger holders, while the round, centred geometry aids alignment and mounting in compatible filtration assemblies. Supplied as a single piece, the untreated VitraPOR® disc integrates readily into laboratory glassware systems that call for durable glass filter media without additional surface finishing. It is intended for routine filtration tasks in research, quality control and preparative laboratory environments that specify porosity 4 borosilicate plates of this diameter and thickness range.
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 glass 3.3
- Diameter: 210 mm
- Porosity: 4
- Thickness: 19,0 mm ± 4,0 mm
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Questions about Filter Disc, centered, 210 mm, Por. 4 Thickness 19 mm ± 4.0 mm
What is this article?
Filter Disc, centered, 210 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.
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.
