Description
Aeration stopper for microfilter is a polypropylene laboratory component fitted with a PTFE sealing ring and intended for microfilters equipped with a Luer cone. Also described as an aeration screw, it enables controlled ventilation in filtration setups that require a secure Luer connection. The part is supplied as a single piece with a net weight of 0,013 kg and a gross weight of 0,014 kg. Manufactured by Eppendorf in Germany (Baden-Württemberg region), this stopper supports reliable sealing and aeration functions within microfilter assemblies used in laboratory workflows. The combination of PP construction and PTFE sealing ring ensures chemical resistance and a tight fit at the Luer interface. It serves as a dedicated accessory for microfilter systems needing an aeration solution. Laboratories performing filtration or sample preparation can incorporate this stopper to maintain proper pressure equalisation and seal integrity. The design matches the requirements of Luer-cone microfilters, providing a straightforward replacement or original-equipment option. Overall dimensions and material selection align with standard lab material expectations for such ventilation components in precision filtration applications.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc(s)
- Material: PP
- Sealing ring material: PTFE
- Connection: Luer cone
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Questions about Ventilation stopper for Microfilter
What is this article?
Ventilation stopper for Microfilter is the article on this page. Luminix Health distributes Eppendorf for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Ground-joint glass stoppers, Lids & seals and Closures (other).
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.