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Stoppers

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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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Description:   XXXX Grade. Tapered, 20mm length. Top diameter: 16mm. Bottom diameter: 12mm. Pack of 500.
Catalog Number: 23420-151
Supplier: VWR International


Low Manufacturing Impact

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Description:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 2. Diameter of top: 20mm. Diameter of bottom: 16mm. Length: 25mm.
Catalog Number: 59580-127
Supplier: VWR International


Small Business Enterprise

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Description:   Low in free sulfur. Size 8 with 5mm diameter hole. Diameter of top: 41mm. Diameter of bottom: 33mm. Length: 25mm. Approximately 14 stoppers per pound. 5 lbs per case.
Catalog Number: 59581-367
Supplier: VWR International


Small Business Enterprise

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Description:   Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 9. Diameter of top: 45mm. Bottom: 37mm. Length 25mm.
Catalog Number: 59589-290
Supplier: VWR International



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Description:   Twistit*. Three twist-off seals permit easy conversion from a solid to a one, two or three-hole stopper. Soft, resilient, natural, white rubber withstands repeated autoclaving. Size: 6.
Catalog Number: 59586-160
Supplier: VWR International


Small Business Enterprise

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Description:   Low in free sulfur. Size 5 with 5mm diameter hole. Diameter of top: 27mm. Diameter of bottom: 23mm. Length: 25mm.
Catalog Number: 59581-243
Supplier: VWR International



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Description:   Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 0. Diameter of top: 17mm. Bottom: 13mm. Length 25mm.
Catalog Number: 59589-110
Supplier: VWR International


Small Business Enterprise

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Description:   Low in free sulfur. Size 10 with 5mm diameter holes. Diameter of top: 50mm. Diameter of bottom: 42mm. Length: 25mm.
Catalog Number: 59582-406
Supplier: VWR International


Small Business Enterprise

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Description:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 10. Diameter of top: 50mm. Diameter of bottom: 42mm. Length: 25mm.
Catalog Number: 59580-386
Supplier: VWR International


Small Business Enterprise

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Certificate Certificates    
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Description:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 13.5. Diameter of top: 75mm. Diameter of bottom: 62mm. Length: 35mm.
Catalog Number: 59580-502
Supplier: VWR International


Small Business Enterprise

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Description:   Elastomer meets JP, PhEur and USP requirements. Size: 13mm.
Catalog Number: 80079-866
Supplier: VWR International



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Certificate Certificates    
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Description:   Pure gum. Contain less free sulfur (1/4%) and are less dense than standard black rubber stoppers. Withstand repeated autoclaving. Size: 12. Diameter of top: 64mm. Bottom: 54mm. Length: 25mm.
Catalog Number: 59583-409
Supplier: VWR International


Small Business Enterprise

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Description:   Low in free sulfur. Size 5 with 5mm diameter holes. Diameter of top: 27mm. Diameter of bottom: 23mm. Length: 25mm.
Catalog Number: 59582-202
Supplier: VWR International


Small Business Enterprise

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Description:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 6.5. Diameter of top: 34mm. Diameter of bottom: 27mm. Length: 25mm.
Catalog Number: 59580-240
Supplier: VWR International


Small Business Enterprise

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Description:   Pure gum. Contain less free sulfur (1/4%) and are less dense than standard black rubber stoppers. Withstand repeated autoclaving. Size: 9. Diameter of top: 45mm. Bottom: 37mm. Length: 25mm.
Catalog Number: 59583-340
Supplier: VWR International


Small Business Enterprise

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Description:   Contain no free sulfur and exhibit good resiliency. Withstand petroleum products and oils as well as most inorganic acids and bases. Size: 3. Diameter of top: 24mm. Bottom: 18mm. Length 25mm.
Catalog Number: 59589-176
Supplier: VWR International


Small Business Enterprise

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