Labbox Neutral PE Test Tube Stopper for Ø12 mm test tubes
The Ø12mm neutral polyethylene test tube stopper from Astiks is a flange type test tube stopper designed for sealing 12mm plastic test tubes. This neutral coloured polyethylene test tube stopper gives you a simple, reusable closure for everyday tube handling in teaching and routine laboratory work.
Manufactured from polyethylene (PE), this stopper is lightweight, impact tolerant and resistant to many common laboratory reagents. The flanged design provides a secure push fit whilst giving you a grip for easy insertion and removal, which is useful when working with larger sample sets. Neutral colour stoppers blend easily across different workflows when colour coding is not required. These stoppers are designed to fit Astiks plastic test tubes TUPP and TUPS of 12mm diameter, helping you build consistent racks of closed tubes for storage and short term transport. Fit with other 12mm diameter test tubes must be tested before use.
Practical Applications
– Closing 12mm plastic test tubes for sample collection and temporary storage
– Sealing tubes during mixing, gentle inversion or bench handling
– Use in teaching labs for basic chemistry and biology exercises
– Organising routine QC and screening samples in racks or transport trays
– General purpose closure for non-hazardous liquids or dry samples
Key Features
– Ø12mm flange type polyethylene test tube stopper
– Neutral colour for general use where colour coding is not required
– Push-fit design for quick sealing and easy removal
– Compatible with 12mm plastic test tubes
– Lightweight and reusable for routine laboratory workflows
Quality & Standards
– Manufactured from polyethylene for toughness and chemical resistance
– Designed for repeated use in education, research and routine lab practice
– Smooth surfaces for straightforward cleaning between uses
– Suitable for non-pressurised use with standard 12mm plastic test tubes
Specifications
– Tube compatibility: Ø12mm plastic test tubes
– Material: Polyethylene (PE)
– Colour: Neutral
– Design: Flange type push-fit stopper
– Brand: Labbox Astiks
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