Description
VitraPOR® glass filter plate with 50 mm diameter and porosity 4 is a precision filtration component manufactured from borosilicate glass 3.3. It features a thickness of 4,5 mm with a tolerance of ± 1,0 mm, an untreated surface and a round, centred geometry for accurate seating in laboratory apparatus. Supplied as a pack of 10 pieces, the plate delivers a defined pore structure suited to fine-grade filtration, particle retention and fluid clarification tasks. The borosilicate glass 3.3 composition provides inherent chemical resistance and thermal stability, supporting repeated use in analytical, preparative and research workflows. Dimensional consistency simplifies integration into standard glassware or custom filtration assemblies. This filter plate from manufacturer ROBU - Stereon maintains the natural sintered-glass surface characteristics, ensuring reliable flow behaviour and mechanical integrity under typical laboratory conditions. Its standardised porosity grade and robust material make it a practical choice for chemistry, life-science and materials laboratories requiring dependable glass filter discs.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 10 pc(s)
- Material: Borosilicate glass 3.3
- Diameter: 50 mm
- Porosity: 4
- Thickness: 4,5 mm ± 1,0 mm
- Surface: Untreated, round centred
- Technical Information Sheet:
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Questions about Filter Disc, centered, 50 mm, Por. 4 Thickness 4.5 mm ± 1.0 mm
What is this article?
Filter Disc, centered, 50 mm, Por. 4 Thickness 4.5 mm ± 1.0 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.
