Labbox Solid Silicone Stopper for Ø34mm Test Tubes
The Ø34mm amber silicone stopper from Labbox is a solid silicone stopper designed to seal containers with an internal diameter of 34 ± 0.5mm. This high temperature silicone stopper is intended for wide neck laboratory bottles and flasks where a flexible yet heat resistant closure is required.
Manufactured from amber silicone, the stopper combines elasticity with strong temperature performance from -70 °C up to +200 °C. It is suitable for repeated autoclaving and for applications that involve hot liquids, steam or low temperature storage. The tapered profile (top diameter around 37mm, bottom diameter around 30mm) provides a firm push-fit seal across the specified neck tolerance, whilst still allowing easy removal by hand. Supplied individually, it is convenient when you need to match specific vessels or replace single stoppers in existing sets.
Practical Applications
– Sealing wide mouth reagent bottles and flasks used with hot or cold liquids
– Closing containers that are autoclaved for sterilisation between uses
– Temporary closure of vessels during heating, cooling or incubation (non-pressurised)
– Stopping large sample jars or collection containers in teaching and research labs
– Use in industrial or pilot plant support labs where robust, heat resistant stoppers are required
Key Features
– Solid amber silicone stopper for containers with approx. 34 ± 0.5mm internal diameter
– Wide temperature range from -70 °C to +200 °C for cold room and heated applications
– Tapered design (approx. 37mm top, 30mm bottom) for secure push-fit sealing
– Suitable for repeated autoclaving at standard sterilisation temperatures
– Supplied individually so you can match or replace stoppers as needed
Quality & Standards
– Manufactured from silicone for flexibility, chemical resistance and high temperature stability
– Designed for repeated use in education, research and industrial laboratories
– Smooth surface for easy cleaning and good sealing contact
– Intended for non-pressurised use with compatible glass or plastic containers
Specifications
– For container internal diameter: 34 ± 0.5mm
– Top diameter: 36.98mm (approx.)
– Bottom diameter: 30.18mm (approx.)
– Height: 25.4mm
– Material: Amber silicone
– Type: Solid tapered stopper
– Brand: Labbox Astiks
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