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.

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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® 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® 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® 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® 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® 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® 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® 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® Corks

Supplier: VWR International

XXXX Corks function as a closure for bottles, vials, laboratory and other openings.

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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 LABORATORY EQUIPMENT

Stoppers are made from Borosilicate 3.3 glass.

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Pluro Stopper, Neoprene, Ace Glass Incorporated

Supplier: ACE GLASS, INC.

Neoprene stopper for use with filter flasks to support funnels securely.

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Silicone Stoppers with Holes, Kimble Chase

Supplier: DWK LIFE SCIENCES S. DE R.L. DE MX

General-purpose, single-hole silicone rubber stoppers

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PYREX® Hollow [ST] Flask Stoppers, Corning

Supplier: CORNING CA

These PYREX® hollow borosilicate glass stoppers are light weight, strong to reduce chipping and breakage. Barrel shaped head makes it easy to clean and rotate in or out. Grooves in the sides help prevent slippage.