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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:   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


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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


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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


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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


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Description:   XXXX Grade. Tapered, 25mm length. Top diameter: 21mm. Bottom diameter: 16mm. Pack of 500.
Catalog Number: 23420-210
Supplier: VWR International


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Description:   Low in free sulfur. Size 10.5 with 5mm diameter hole. Diameter of top: 53mm. Diameter of bottom: 45mm. Length: 25mm.
Catalog Number: 59581-469
Supplier: VWR International


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Description:   Low in free sulfur. Size 7.5 with 5mm diameter hole. Diameter of top: 39mm. Diameter of bottom: 31mm. Length: 25mm.
Catalog Number: 59581-345
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: 10. Diameter of top: 50mm. Bottom: 42mm. Hole diameter: 5mm.
Catalog Number: 59585-302
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. Added hole facilitates laboratory usage. Size: 11. Diameter of top: 56mm. Bottom: 48mm. Hole diameter: 5mm.
Catalog Number: 59584-332
Supplier: VWR International


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Description:   XXXX Grade. Tapered, 31mm length. Top diameter: 33mm. Bottom diameter: 27mm. Pack of 100.
Catalog Number: 23420-366
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: 8. Diameter of top: 41mm. Bottom: 33mm. Hole diameter: 5mm.
Catalog Number: 59584-274
Supplier: VWR International


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Catalog Number: 89097-542
Supplier: VWR International



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Catalog Number: 89097-550
Supplier: VWR International



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Certificate Certificates    
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Description:   Low in free sulfur. Size 5.5 with 5mm diameter hole. Diameter of top: 28mm. Diameter of bottom: 24mm. Length: 25mm.
Catalog Number: 59581-265
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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Description:   XXXX Grade. Tapered, 25mm length. Top diameter: 21mm. Bottom diameter: 16mm. Pack of 100.
Catalog Number: 23420-209
Supplier: VWR International


Low Manufacturing Impact

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Certificate Certificates    
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