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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:   Pure gum. Contain less free sulfur (1/4%) and are less dense than standard black rubber stoppers. Withstand repeated autoclaving. Size: 4. Diameter of top: 26mm. Bottom: 20mm. Length: 25mm.
Catalog Number: 59583-249
Supplier: VWR International


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Description:   XXXX Grade. Tapered, 38mm length with cemented construction. Top diameter: 50mm. Bottom diameter: 44mm. Pack of 10.
Catalog Number: 23420-526
Supplier: VWR International


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Description:   XXXX Grade. Tapered, 12mm length. Top diameter: 6mm. Bottom diameter: 4mm. Pack of 500.
Catalog Number: 23420-038
Supplier: VWR International


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Description:   Green neoprene stopper. Size: #13.5.
Catalog Number: 59589-372
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: 14. Diameter of top: 90mm. Bottom: 75mm. Length 39mm.
Catalog Number: 59589-374
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: 2. Diameter of top: 20mm. Bottom: 16mm. Length 25mm.
Catalog Number: 59589-154
Supplier: VWR International


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Description:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 13. Diameter of top: 68mm. Diameter of bottom: 58mm. Length: 25mm.
Catalog Number: 59580-488
Supplier: VWR International


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Description:   VWR STOPPER RUB 2HOLE 12 PK6
Catalog Number: 59582-484
Supplier: VWR International



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Description:   XXXX Grade. Tapered, 13mm length. Top diameter: 8mm. Bottom diameter: 6mm. Pack of 500.
Catalog Number: 23420-050
Supplier: VWR International


Low Manufacturing Impact

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Description:   XXXX Grade. Tapered, 12mm length. Top diameter: 6mm. Bottom diameter: 4mm. Pack of 100.
Catalog Number: 23420-027
Supplier: VWR International


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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:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 15. Diameter of top: 103mm. Diameter of bottom: 83mm. Length: 39mm.
Catalog Number: 59580-546
Supplier: VWR International


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Description:   XXXX grade. Regular length taper. Assorted, sizes 0-11.
Catalog Number: 23416-008
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: 10.5. Diameter of top: 53mm. Diameter of bottom: 45mm. Length: 25mm.
Catalog Number: 59580-400
Supplier: VWR International



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Description:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 11.5. Diameter of top: 63mm. Diameter of bottom: 50mm. Length: 25mm.
Catalog Number: 59580-444
Supplier: VWR International


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Description:   Low in free sulfur. Size 1 with 4mm diameter hole. Diameter of top: 19mm. Diameter of bottom: 14mm. Length: 25mm.
Catalog Number: 59581-163
Supplier: VWR International


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