Description
Blue polypropylene (PP) lid inserts for reaction vessels offer a practical colour-coding option for laboratory microtubes and comparable reaction tubes. Designed for lids without a tamper-evident closure, each insert fits into the cap so samples can be recognised instantly from above by colour during pipetting, mixing, centrifugation and short- or medium-term storage. The PP construction matches common single-use plasticware used in molecular biology, biochemistry and clinical research sample preparation. Supplied in a pack of 500 pieces, the blue inserts support continuous bench work and multi-rack experiments where consistent visual coding by channel, condition or user is essential. These lid inserts from manufacturer Brand help keep reaction-vessel sets ordered without relying only on side writing that may smear or become hard to read. They are a simple accessory for laboratories that need reliable top-view colour differentiation of reaction-tube lids to streamline workflow organisation and lower the chance of sample mix-ups.
This article is part of Microcentrifuge & reaction tubes, in Microplates, PCR & reaction tubes.
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Microplates, PCR & reaction tubes
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Microcentrifuge & reaction tubes
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Questions about Cap insert, PP, for micro tubes, for colour coding, blue, pack of 500
What is this article?
Cap insert, PP, for micro tubes, for colour coding, blue, pack of 500 is the article on this page. Luminix Health distributes BRAND for laboratory use. It sits in Microcentrifuge & reaction tubes, inside Microplates, PCR & reaction tubes, in Consommables.
A microcentrifuge tube, the familiar 1.5 mL or 2 mL flip-cap tube, holds a small reaction or a spin-down. The cap style, the centrifugal-force rating and whether the tube is low-binding are the specification. A PCR tube is thinner and is a different article.
A microplate is an array of wells so the same step can be done many times. A deep-well plate holds more volume. A PCR plate or a strip of tubes is thin-walled so the temperature of a cycler reaches the liquid quickly. A seal keeps the well from evaporating. The well number, the working volume and whether the plate is skirted for a robot are the choices. Diagnostic test systems are listed under ISO in vitro diagnostic systems. Methods are on PubMed.
Which category should I open next?
The category is Microplates, PCR & reaction tubes. The sub-category is Microcentrifuge & reaction tubes. The catalogue is Consommables.
Shelves beside this one are PCR plates, tubes & strips, Microplates, Plate seals & sealing films and Deep-well plates.
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.
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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.

