Stoppers

Leak-proof, solid stoppers seal bottles, flasks, vials, and even tubing to prevent liquids and gases escaping. Multi-hole styles provide the limited flow stability conditions desired in order to prevent air bubble build up. With a slightly tapered design, different diameter sized stoppers are inserted in labware for a snug fit that still allows easy removal. The closures are manufactured in different materials for accurate resistance to harsh contents and can maintain vacuum atmosphere.

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Glass stoppers, standard taper, hexagonal, hollow

Supplier: Lenz Laborglas

These standard taper hollow stoppers are made from borosilicate glass 3.3 and have a hexagonal head.

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Silicone stoppers, Versilic®

Supplier: Saint Gobain Life Sciences

These slightly conical translucent stoppers are made from silicone.

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Silicone stoppers, HelixMark®

Supplier: Freudenberg Medical Europe GmbH

HelixMark silicone stoppers enable reliable sealing of glass tubes, vials and flasks. The stoppers are suitable for all commonly used diameters and sizes.

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Stoppers, rubber, conical, without holes

Supplier: Saint Gobain Life Sciences

Conical natural grey-blue rubber stoppers without holes.

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Conical stoppers, Versilic®

Supplier: Saint Gobain Life Sciences

These silicone stoppers are non toxic.

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Stoppers, PTFE

Supplier: Bohlender

For closing ground joint parts. With ground joint and sealing rings on the outside; knurled or hexagonal grip. Compared with glass stoppers, they are easily removable and can be used without grease.

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Closing cones, Combi-Stoppers

Supplier: B. Braun

These PE Combi-Stoppers are used for sealing male or female Luer-Lock and Luer-Slip connections.

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Stoppers for conical ground joints

Supplier: Lenz Laborglas

DURAN®, borosilicate glass stopper, clear, solid or semi hollow.

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Stoppers, Pierce-It™

Supplier: Simport Scientific

Made of thermoplastic elastomer these disposable closures produce a firm, leak-resistant seal for glass and plastic tubes. They will protect samples from evaporation and contamination. They can be easily applied and removed with one hand. They can be punctured to allow through-cap sampling via closed-tube instrumentation systems. Two sizes, 13 and 16 mm fit a variety of tubes including glass evacuated blood drawing tubes. Will also fit 12 mm I.D. cuture tubes.

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Versilic™ Stoppers

Supplier: Saint Gobain Life Sciences

Use these stoppers for biology, microbiology and hematology, as well as food science, technical, medical and hospital apparatus. Saint Gobain Life Sciences Versilic™ Silicone Stoppers are particularly suited for all types of tissue culture work.

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Rubber stopper, DURAN®

Supplier: DWK Life Sciences

This bromobutyl rubber closure provides a gas-tight seal for all GL 25 and GL 45 laboratory bottles with sizes from 10 to 20000 ml.

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Push-in stoppers for tubes

Supplier: Simport Scientific

HDPE. Fit tubes of 15 ml capacity and 17 mm Ø.

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Stopper, IN-Stopper

Supplier: B. Braun

IN-Stopper is a male luer lock closing cone with injection port for intermittent injections through injection membrane. It closes female accesses and offers a needle access via an injection membrane, e.g. to an infusion solution and has got a smooth, hygienic outer surface.

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Drain stoppers for SAP and JBN baths

Supplier: GRANT INSTRUMENTS

Drain stoppers, recommended when using heat transfer beads, to prevent beads entering the drain hole.

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Stoppers, rubber, conical, pre-drilled

Supplier: Saint Gobain Life Sciences

Natural rubber, grey-blue.

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Stoppers, universal caps, FitsAll™

Supplier: Simport Scientific

Designed for easy-on, easy-off use. Cap removal is simple and quick. FitsAll™ closure is ideal for recapping most 12 and 16 mm O.D. evacuated glass blood collection tubes. Flexible FitsAll™ closures protect from aerosols of highly infectious microorganisms. They guard samples against cross-contamination and laboratory work areas against infection and spillage. Precision molded from low-density polyethylene, FitsAll™ fits firmly on the tube. Not suitable for autoclaving.