Description
PORAFIL PE membrane filter with a pore size of 0,40 µm and a diameter of 25 mm is a laboratory filtration disc intended for particle retention and sample clarification. These membranes are based on polyethylene terephthalate (PET) and are supplied non-sterile in packs of 100 pieces. The 0,40 µm pore width supports fine filtration in analytical sample preparation, HPLC sample clean-up and general laboratory workflows requiring controlled retention. The 25 mm diameter suits standard filter holders and related housings used for moderate sample volumes. From manufacturer Macherey-Nagel, the PORAFIL PE series offers a consistent membrane format for routine microfiltration. Packs of 100 filters support efficient laboratory stocking in research, quality-control and process environments. Defined pore size together with PET construction makes these discs suitable for aqueous media and many organic solvents compatible with the polymer. Choose this size wherever reproducible 25 mm membrane filtration performance is required for everyday sample handling at the bench.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product line: PORAFIL PE
- Pore size: 0,40 µm
- Diameter: 25 mm
- Material: Polyethylene terephthalate (PET)
- EAN: 4046681008108
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Questions about PORA PE, PW:0,40 µm, d: 25 mm
What is this article?
PORA PE, PW:0,40 µm, d: 25 mm is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Membrane filters, inside Filtration, in Lab consumables.
A membrane filter is the disc itself, without a syringe housing. Pore size, polymer and diameter are the specification, and the disc has to sit in a holder. Gridded membranes are for counting colonies. A membrane and a filter paper of the same diameter are not interchangeable.
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 Membrane filters. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Sintered glass filter plates & discs, Syringe filters, Filter cartridges & capsules, 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.

