Labbox Red PP Stopper for Ø16mm Test Tubes
The Ø16mm red polypropylene (PP) test tube stopper from Labbox is a reusable PP test tube stopper for sealing and colour coding 16mm glass test tubes. This red polypropylene test tube stopper helps you distinguish priority samples, controls or particular workflows at a glance.
Constructed from polypropylene, the stopper is lightweight, tough and resistant to many routine reagents, whilst also being autoclavable at 121 °C. The push-fit design gives a firm seal that is suitable for everyday handling, mixing and short term storage of non-pressurised samples. The bright red colour provides clear visual identification in racks and storage trays, which is useful in busy teaching or QC laboratories. Supplied individually, the stopper allows you to build or adjust colour coded systems without committing to full pack quantities.
Practical Applications
– Colour coding Ø16mm tubes containing controls, standards or flagged samples
– Sealing test tubes during incubation, storage or transport between benches
– Marking tubes holding hazardous or irritant reagents in teaching labs
– Organising QC or production samples by colour category in racks
– Replacing individual red stoppers in mixed colour tube systems
Key Features
– Red polypropylene test tube stopper for Ø16mm glass test tubes
– Push-fit closure for quick sealing and removal
– Good chemical resistance and mechanical durability for routine use
– Autoclavable at 121 °C for sterile or aseptic applications
– Supplied individually to support flexible colour coding schemes
Quality & Standards
– Manufactured from polypropylene for impact tolerance and repeated use
– Suitable for education, research and routine laboratory environments
– Smooth moulded finish for easy cleaning and comfortable handling
– Intended for non-pressurised use with compatible glass test tubes
Specifications
– Tube compatibility: Ø16mm glass test tubes
– Material: Polypropylene (PP)
– Colour: Red
– Design: Push-fit test tube stopper
– Autoclavable: Yes, at 121 °C
– Brand: Labbox Astiks
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