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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VWR®, Stoppers for Standard Ground Joints

Supplier: VWR Collection

Greaseless closure, which prevents ground joints from seizing. With inclined, circumferential sealing lips for better sealing and reduced risk of breakage. Easily detachable. With ergonomically shaped grip.

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VWR®, Conical Stoppers, Cork

Supplier: VWR Collection

Natural cork, A1 quality.

Expand 17 Items

VWR® Cellulose Stoppers

Supplier: VWR Collection

These stoppers are made of cellulose and are used for microbiological samples and tissue cultures in test tubes or Erlenmeyer flasks.

Expand 45 Items

VWR® Plugs for Drosophila Vials and Bottles

Supplier: VWR Collection

These plugs are made of bonded dense weave cellulose acetate which provides an excellent barrier to mite infestation. They are precision manufactured for consistent fit and minimal waste.

Expand 3 Items

VWR®, Stoppers, PE

Supplier: VWR Collection

Stopper for test tubes Ø 12 to 16 mm, polyethylene, with tongues.

Expand 17 Items

VWR®, Drain Stoppers for VWB2 Water Baths

Supplier: VWR Collection

Drain stoppers, VWR®

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VWR®, Glass Stoppers for Standard Ground Joints

Supplier: VWR Collection

Borosilicate 3.3 glass.

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VWR®, Cork Plate, Square

Supplier: VWR Collection

Stopper, cork

Expand 1 Items

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.

Expand 12 Items

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.

Expand 18 Items

Stoppers, flange plug caps

Supplier: Simport Scientific

PE Plug type push-in caps and 2-position snap caps are made of polyethylene for test tubes with outside diameters of 12 or 17 mm. Dual position caps offer two possibilities: the closed but unsealed position where samples are maintained aerobic for microbiological procedures; and the fully sealed position where the cap is pushed tight to seal the tube for anaerobic use or for storage, transfer and centrifuge applications.

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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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Stoppers, rubber, with reversible edge

Supplier: Saint Gobain Life Sciences

The white stoppers made of natural rubber guarantee absolute impermeability, even when the edges of the tubes or glass, metal or plastic containers to be sealed are imperfect. They can be punctured and resealed after sampling, even after several uses.

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Silicone stoppers with folding skirt, Versilic®

Supplier: Saint Gobain Life Sciences

These stoppers are made of translucent silicone. The stoppers guarantee absolute impermeability, even when the edges of the tubes or glass, metal or plastic containers are imperfect.

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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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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.