Labbox Blue PE Test Tube Stopper for Ø16 mm test tubes
The Ø16mm blue polyethylene test tube stopper from Astiks is a flange type stopper for sealing 16mm plastic test tubes with clear colour differentiation. This blue polyethylene test tube stopper supports colour coded workflows where larger volume tubes are used.
The polyethylene construction provides robustness and resistance to many routine laboratory chemicals, making the stopper suitable for frequent opening and closing. A broad flanged head offers good grip and a reliable stop at the tube mouth, supporting quick push-fit closure. Blue colour coding can be used to mark specific sample sets, departments or assay types, particularly when used alongside neutral and red stoppers in the same range. These stoppers are designed for Astiks TUPP and TUPS 16mm plastic test tubes. Fit with other 16mm diameter test tubes must be tested before use.
Practical Applications
– Colour coding 16mm tubes by assay, sampling point or user
– Sealing tubes containing culture media, buffer solutions or reaction mixtures
– Organising racks of larger tubes in incubators, cold rooms or on benches
– Separating blanks, calibration standards and samples by colour
– Teaching laboratories where colour coded closures help students manage samples
Key Features
– Ø16mm flange type blue polyethylene test tube stopper
– Push-fit seal suitable for routine handling and short term storage
– Wide flanged top for secure grip and correct seating at the tube opening
– Compatible with Astiks 16mm plastic test tubes TUPP and TUPS
– Reusable stopper for general purpose laboratory applications
Quality & Standards
– Manufactured from polyethylene for toughness and chemical resistance
– Designed for repeated use in education, research and routine lab practice
– Smooth moulded surfaces for easy cleaning and comfortable handling
– Intended for non-pressurised use with 16mm plastic test tubes
Specifications
– Tube compatibility: Ø16mm plastic test tubes
– Material: Polyethylene (PE)
– Colour: Blue
– Design: Flange type push-fit stopper
– Brand: Labbox Astiks
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