Description
CHROMAFIL Xtra H-PTFE-20/25 is a disposable laboratory filter fitted with a hydrophilized polytetrafluoroethylene (PTFE) membrane for sample clarification and particle removal. The membrane offers a pore size of 0,2 µm and a diameter of 25 mm, making it suitable for aqueous and mixed-solvent workflows where fine particulate control is required. A colourless polypropylene housing carries clear labelling so filters can be identified quickly at the bench. Packaged as 100 pieces, the units support routine preparation steps ahead of chromatography, spectroscopy or other analytical measurements. The hydrophilic PTFE construction combines the broad chemical resistance typical of PTFE with improved wetting by aqueous media, which helps maintain practical flow during filtration. These filters from manufacturer Macherey-Nagel are intended for single use, helping laboratories keep sample paths clean and limit carry-over between preparations. The 25 mm format provides a practical balance of filtration area and manageable hold-up for common analytical sample volumes in research and quality-control settings.
This article is part of Syringe filters, in Filtration.
Key features
- Pack size: 100 pc(s)
- Membrane material: Hydrophilized PTFE
- Pore size: 0,2 µm
- Membrane diameter: 25 mm
- Housing: Colourless labelled PP
- EAN: 4046681073687
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Questions about CHROMAFIL Xtra H-PTFE-20/25
What is this article?
CHROMAFIL Xtra H-PTFE-20/25 is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Syringe filters, inside Filtration, in Lab consumables.
A syringe filter is a membrane in a plastic housing on a Luer fitting. Pore size, membrane polymer and diameter are the three choices. 0.2 µm is the sterilising and the HPLC-particle cut. 0.45 µm is the coarser clarification. Aqueous and solvent-resistant membranes are different polymers.
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 Syringe filters. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Sintered glass filter plates & discs, 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. Articles in stock ship within 2–5 business days. 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.