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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:   Designed to fit 800ml flasks. Low free-sulfur content (1/2%), lower density than neoprene, and excellent resiliency and pliability. 8mm diameter hole; 39mm top diameter; 28mm bottom diameter; 35mm length.
Catalog Number: 59587-501
Supplier: VWR International


Small Business Enterprise

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Description:   XXXX Grade. Tapered, 20mm length. Top diameter: 16mm. Bottom diameter: 12mm. Pack of 100.
Catalog Number: 23420-140
Supplier: VWR International


Low Manufacturing Impact

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Description:   High resiliency, pure gum. Less free sulfur (1/4%) and lower density than standard black rubber stoppers. Added hole facilitates laboratory usage. Size: 0. Diameter of top: 17mm. Bottom: 13mm. Hole diameter: 3mm.
Catalog Number: 59584-117
Supplier: VWR International


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Description:   Low in free sulfur. Size 6.5 with 5mm diameter holes. Diameter of top: 34mm. Diameter of bottom: 27mm. Length: 25mm.
Catalog Number: 59582-268
Supplier: VWR International


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Description:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 11. Diameter of top: 56mm. Diameter of bottom: 48mm. Length: 25mm.
Catalog Number: 59580-422
Supplier: VWR International



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Description:   VWR* Black Rubber Stoppers, Solid High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 00. Diameter of top: 15mm. Diameter of bottom: 10mm. Length: 25mm.
Catalog Number: 59580-069
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: 12. Diameter of top: 64mm. Bottom: 54mm. Length 25mm.
Catalog Number: 59589-358
Supplier: VWR International



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Description:   Low in free sulfur. Size 13.5 with 5mm diameter hole. Diameter of top: 75mm. Diameter of bottom: 62mm. Length: 35mm.
Catalog Number: 59581-560
Supplier: VWR International


Small Business Enterprise

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Description:   Low in free sulfur. Size 8 with 5mm diameter holes. Diameter of top: 41mm. Diameter of bottom: 33mm. Length: 25mm.
Catalog Number: 59582-326
Supplier: VWR International


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Certificate Certificates    
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Description:   With FluroTec* barrier film. Delivered ready-to-sterilize. Elastomer meets JP, PhEur and USP requirements. Size: 20mm.
Catalog Number: 80079-876
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: 6. Diameter of top: 32mm. Bottom: 26mm. Length: 25mm.
Catalog Number: 59583-282
Supplier: VWR International


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Catalog Number: 89097-552
Supplier: VWR International


Small Business Enterprise

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Description:   Low in free sulfur. Size 3 with 5mm diameter holes. Diameter of top: 24mm. Diameter of bottom: 18mm. Length: 25mm.
Catalog Number: 59582-166
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: 5. Diameter of top: 27mm. Bottom: 23mm. Length 25mm.
Catalog Number: 59589-212
Supplier: VWR International


Small Business Enterprise

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Description:   XXXX grade. Regular length taper. Assorted, sizes 12-26.
Catalog Number: 23417-000
Supplier: VWR International


Low Manufacturing Impact

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Description:   Elastomer meets JP, PhEur and USP requirements. Size: 20mm.
Catalog Number: 80079-868
Supplier: VWR International



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Certificate Certificates    
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