Labbox Blue PE Test Tube Stopper for Ø13 mm test tubes
The Ø13mm blue polyethylene test tube stopper from Astiks is a flange type stopper for closing 13mm plastic test tubes with clear colour differentiation. This blue polyethylene test tube stopper lets you separate sample sets visually whilst maintaining a simple, reusable closure.
The PE stopper is tough, lightweight and resistant to many everyday reagents. Its flanged design gives a secure grip and a positive stop at the mouth of the tube, supporting quick insertion and removal. Blue colour coding is useful for distinguishing specific assays, departments or sample groups from red and neutral tubes. The stopper is intended for use with Astiks TUPP and TUPS 13mm plastic test tubes. These stoppers fit Astiks TUPP and TUPS 13mm plastic test tubes. Fit with other 13mm diameter test tubes must be tested before use.
Practical Applications
– Colour coding 13mm tubes for particular assays, operators or sampling sites
– Sealing tubes for routine biological, chemical or educational experiments
– Organising mixed sample racks by colour for easy recognition
– Separating blanks, controls and unknowns during analytical runs
– Use in teaching labs where colour coded closures aid student workflow
Key Features
– Ø13mm flange type polyethylene test tube stopper in blue
– Push-fit seal suitable for routine handling and short-term storage
– Flanged head improves grip and alignment in the tube mouth
– Designed to fit Astiks 13mm plastic test tubes TUPP and TUPS
– Reusable closure suitable for everyday lab applications
Quality & Standards
– Manufactured from polyethylene for impact tolerance and chemical resistance
– Designed for repeated use in education, research and QC laboratories
– Smooth moulded finish for easy cleaning and comfortable handling
– Intended for non-pressurised use with standard 13mm plastic test tubes
Specifications
– Tube compatibility: Ø13mm plastic test tubes
– Material: Polyethylene (PE)
– Colour: Blue
– Design: Flange type push-fit stopper
– Brand: Labbox Astiks
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