You searched for: 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.
VWR® Green Neoprene Stoppers, Solid
Supplier: VWR International
Synthetic, neoprene stoppers contain no free sulfur and exhibit good resiliency and shelf-life.
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VWR® Sleeve Stoppers
Supplier: VWR International
Natural rubber stoppers feature a hollow plug to fit inside bottles, flasks, vials, or tubing.
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VWR® Pure Gum Rubber Stoppers, Two-Hole
Supplier: VWR International
These highly resilient, pure gum, off-white rubber stoppers have less free sulfur (max
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VWR® Rubber Stoppers
Supplier: VWR International
Versatile rubber stoppers are four stoppers in one.
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VWR® Pure Gum Rubber Stoppers, Solid
Supplier: VWR International
These solid, pure gum, amber rubber stoppers contain less free sulfur (max
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VWR® Two-Hole Rubber Stoppers, Black
Supplier: VWR International
These black, high percentage rubber stoppers are low in free sulfur and have two holes to facilitate laboratory procedures.
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VWR® Solid Rubber Stoppers, Black
Supplier: VWR International
These solid, black stoppers contain a high percentage of pure rubber, weigh less than neoprene, and are low in free sulfur (1/2%).
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VWR® Stopper Tie
Supplier: VWR International
Made of stretchable natural rubber for use with glass stoppers.
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VWR® Pure Gum Rubber Stoppers, One-Hole
Supplier: VWR International
These highly resilient, pure gum, amber rubber stoppers have less free sulfur (max
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VWR® One-Hole Rubber Stoppers, Black
Supplier: VWR International
These black high-percentage rubber stoppers are low in free sulfur and have a single hole to facilitate laboratory procedures.
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VWR® Chlorobutyl Serum and Lyophilization Stoppers
Supplier: VWR International
Stoppers are molded from elastomeric formula 4432/50 Gray. This formula has extremely low levels of organic and metallic extractables and does not contain plasticizers, 2-Mercaptobenzothiazole, nitrosamine precursors, or natural rubber latex.
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VWR® One-Hole Kjeldahl Rubber Stoppers, Black
Supplier: VWR International
These black rubber, one-hole stoppers are specifically designed to fit 500 and 800 mL Kjeldahl nitrogen determination flasks.
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VWR® Rubber Stopper Assortment, Black
Supplier: VWR International
This practical, two-pound assortment of black rubber stoppers is ideal for the small laboratory or school with limited need for any one size or style.
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VWR® Red Rubber Stoppers, Flanged, Plasticoid
Supplier: VWR International
Permit insertion of hypodermic needles.
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VWR® Micro Stoppers
Supplier: VWR International
Select from soft red natural rubber or green neoprene for higher heat resistance.
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VWR® Flathead [ST] Stoppers,PTFE
Supplier: VWR International
Inert and chemically resistant solid PTFE stoppers for use with standard ground glass joints.
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Rubber Stopper Assortment
Supplier: Avantor
Solid, 1-Hole, 2-Hole, and 3-Hole Stoppers in Assorted Sizes.
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Foam Plugs
Supplier: Avantor
These foam plugs are designed to fit most test tubes and vials.
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Pennyhead Stopper, Solid Glass, Glassco
Supplier: Glassco
Stoppers are made from Borosilicate 3.3 glass.
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PTFE Stoppers, Glassco
Supplier: Glassco
Stoppers are made from PTFE material, and are designed for use with laboratory glassware such as flasks and separatory funnels.
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Round-Head Glass Stoppers, Ace Glass Incorporated
Supplier: Ace Glass
Round-head style glass stoppers are available in a variety of lengths and sizes
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Firestone Hy-n-Dry Stopper, Ace Glass Incorporated
Supplier: Ace Glass
The Firestone Hy-n-Dry stopper inexpensively makes any standard taper vessel a desiccator
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KIMAX® Glass Pennyhead [ST] Stoppers, Flask Length, Kimble Chase
Supplier: DWK LIFE SCIENCES S. DE R.L. DE MX
Stoppers are for use with flasks, mixing cylinders, separatory funnels, and other glassware
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PTFE Stoppers, Ace Glass Incorporated
Supplier: Ace Glass
Standard taper stoppers made of solid PTFE.
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Stoppers, Standard Taper Hollow PTFE with Handle, Ace Glass Incorporated
Supplier: Ace Glass
Standard taper, hollow PTFE stoppers with easy-to-grip handle.
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SP Wilmad-LabGlass Solid Pennyhead [ST] Stoppers, Medium Length, SP Industries
Supplier: SP Industries
Solid glass, medium length stoppers.