Rubber Stoppers
With a high material purity, rubber stoppers and bungs are lightweight options to seal containers or apparatuses. Solid styles do not permit any gas exchange in order to protect ultra-sensitive contents, while holed options support unexposed processing. Retaining the characteristic softness even under testing conditions, rubber stoppers are often autoclavable for repeated use. The inserting closures are available in any diameter size to securely fit any desired equipment.
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® 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® 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® 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 Stoppers
Supplier: VWR International
Versatile rubber stoppers are four stoppers in one.
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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 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, Solid
Supplier: VWR International
These solid, pure gum, amber rubber stoppers contain less free sulfur (max
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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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Septa, Sleeve Type, Rubber, Ace Glass Incorporated
Supplier: ACE GLASS, INC.
This sleeve-type septa has a hollow plug
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Precision Seal™ Septa, Rubber, Ace Glass Incorporated
Supplier: ACE GLASS, INC.
Seals are engineered for a precision fit (80% glass to rubber contact) in standard taper glassware joints and tubes
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Pluro Stoppers, Kimble Chase
Supplier: DWK Life Sciences (KIMBLE)
This autoclavable neoprene rubber adapter set consists of seven cones designed to fit buchner and fritted glass funnels
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Suba-Seal® Septum Stoppers, Chemglass
Supplier: CHEMGLASS INC.
Suba-Seal® Septum Stoppers are made from natural red rubber.
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Ultrapure Straight Plug Stoppers, Wheaton
Supplier: DWK LIFE SCIENCES S. DE R.L. DE MX
Manufactured from an ultrapure bromobutyl formulation with extremely high chemical purity and low gas permeability.
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