Description
Round filter MN 439, 4,5 cm is a circular laboratory filter suited to general filtration applications in analytical and research laboratories. Featuring a diameter of 4,5 cm, it accommodates typical sample volumes encountered in qualitative separations, sample clarification and routine funnel work. Each unit is packed with 100 pieces, offering a practical supply for continuous laboratory activity. The MN 439 grade maintains uniform dimensions and handling properties that favour consistent performance from sample to sample. Available from manufacturer Macherey-Nagel, these filters integrate readily into chemistry, quality-control and educational protocols. Pack net weight is 0,04 kg, supporting straightforward storage and logistics. The circular shape ensures stable positioning in standard filter apparatus and promotes even liquid distribution. Users appreciate the ready-to-deploy format that reduces setup time between runs. Suitable for everyday aqueous and organic solvent filtrations, the product assists reliable particulate retention under normal laboratory conditions. The 100-piece pack size delivers an efficient combination of economy and availability for extended experimental programmes.
This article is part of Glass & quartz fibre filters, in Filtration.
Key features
- Pack size: 100 pc(s)
- Type: Round filter MN 439
- Diameter: 4,5 cm
- EAN: 4046681092640
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Questions about Glass fiber filters MN 439, 4.5 cm
What is this article?
Glass fiber filters MN 439, 4.5 cm is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Glass & quartz fibre filters, inside Filtration, in Lab consumables.
Glass-fibre and quartz-fibre filters are depth filters with a high dirt load, used for air sampling, for total suspended solids and in front of a membrane. They have no sharp pore-size cutoff the way a membrane does. Binderless grades matter when the filter will be weighed or heated.
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 Glass & quartz fibre filters. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Sintered glass filter plates & discs, Syringe filters, Filter cartridges & capsules, Membrane 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.