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VWR International

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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:   High resiliency, pure gum. Less free sulfur (1/4%) and lower density than standard black rubber stoppers. Holes facilitate laboratory usage. Size: 12. Diameter of top: 64mm. Bottom: 54mm. Hole diameter: 5mm.
Catalog Number: 59585-346
Supplier: VWR International


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Description:   XXXX Grade. Tapered, 26mm length. Top diameter: 22mm. Bottom diameter: 17mm. Pack of 100.
Catalog Number: 23420-220
Supplier: VWR International


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Description:   XXXX Grade. Tapered, 31mm length. Top diameter: 28mm. Bottom diameter: 23mm. Pack of 100.
Catalog Number: 23420-300
Supplier: VWR International


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Description:   XXXX Grade. Tapered, 38mm length with cemented construction. Top diameter: 47mm. Bottom diameter: 40mm. Pack of 10.
Catalog Number: 23420-504
Supplier: VWR International


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Description:   XXXX Grade. Tapered, 38mm length. Top diameter: 38mm. Bottom diameter: 30mm. Pack of 100.
Catalog Number: 23420-435
Supplier: VWR International


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Description:   XXXX Grade. Tapered, 38mm length with cemented construction. Top diameter: 47mm. Bottom diameter: 40mm. Pack of 100.
Catalog Number: 23420-515
Supplier: VWR International


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Description:   Low in free sulfur. Size 9 with 5mm diameter holes. Diameter of top: 45mm. Diameter of bottom: 37mm. Length: 25mm.
Catalog Number: 59582-360
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:   XXXX grade. Regular length taper. Assorted, sizes 12-26.
Catalog Number: 23417-000
Supplier: VWR International


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Description:   XXXX Grade. Tapered, 25mm length. Top diameter: 21mm. Bottom diameter: 16mm. Pack of 100.
Catalog Number: 23420-209
Supplier: VWR International


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Certificate Certificates    
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Catalog Number: 89097-548
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: 7. Diameter of top: 37mm. Bottom: 30mm. Length 25mm.
Catalog Number: 59589-256
Supplier: VWR International


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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


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Catalog Number: 89097-542
Supplier: VWR International



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Description:   Low in free sulfur. Size 8.5 with 5mm diameter hole. Diameter of top: 43mm. Diameter of bottom: 36mm. Length: 25mm.
Catalog Number: 59581-389
Supplier: VWR International


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Catalog Number: 89097-550
Supplier: VWR International



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Certificate Certificates    
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