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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. Added hole facilitates laboratory usage. Size: 5. Diameter of top: 27mm. Bottom: 23mm. Hole diameter: 5mm.
Catalog Number: 59584-219
Supplier: VWR International



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Description:   Twistit*. Two twist-off seals permit easy conversion from a solid to a one or two-hole stopper. Soft, resilient, natural, white rubber withstands repeated autoclaving. Size: 4.
Catalog Number: 59586-158
Supplier: VWR International


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Description:   Low in free sulfur. Size 2 with 5mm diameter hole. Diameter of top: 20mm. Diameter of bottom: 16mm. Length: 25mm.
Catalog Number: 59581-185
Supplier: VWR International


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Description:   Low in free sulfur. Size 11.5 with 5mm diameter hole. Diameter of top: 63mm. Diameter of bottom: 50mm. Length: 25mm.
Catalog Number: 59581-505
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: 3. Diameter of top: 24mm. Bottom: 18mm. Length: 25mm.
Catalog Number: 59583-227
Supplier: VWR International


Small Business Enterprise

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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: 7.
Catalog Number: 59586-161
Supplier: VWR International


Small Business Enterprise

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Catalog Number: 89097-558
Supplier: VWR International


Product available on GSA Advantage® Small Business Enterprise

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Description:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 5. Diameter of top: 27mm. Diameter of bottom: 23mm. Length: 25mm.
Catalog Number: 59580-182
Supplier: VWR International


Small Business Enterprise

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Description:   Low in free sulfur. Size 11 with 5mm diameter hole. Diameter of top: 56mm. Diameter of bottom: 48mm. Length: 25mm.
Catalog Number: 59581-480
Supplier: VWR International


Small Business Enterprise

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Description:   XXXX Grade. Tapered, 18mm length. Top diameter: 14mm. Bottom diameter: 11mm. Pack of 100.
Catalog Number: 23420-129
Supplier: VWR International


Low Manufacturing Impact

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Description:   XXXX Grade. Tapered, 31mm length. Top diameter: 25mm. Bottom diameter: 20mm. Pack of 100.
Catalog Number: 23420-264
Supplier: VWR International


Low Manufacturing Impact

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Description:   Operates at high vacuum - transverse trapezoidal sealing rings . Self-releasing versions available on request. Use up to 280C (540F). Leakage Rate < 1 x 10-4 torr, liter, sec-1. 24/40 Joint Size
Catalog Number: 89026-340
Supplier: VWR International



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Description:   High percentage of pure rubber; weigh less than neoprene; low in free sulfur (1/2%). Size: 1. Diameter of top: 19mm. Diameter of bottom: 14mm. Length: 25mm.
Catalog Number: 59580-105
Supplier: VWR International


Small Business Enterprise

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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: 5.
Catalog Number: 59586-159
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: 12. Diameter of top: 64mm. Diameter of bottom: 54mm. Length: 25mm.
Catalog Number: 59580-466
Supplier: VWR International


Product available on GSA Advantage® Small Business Enterprise

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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: 6. Diameter of top: 32mm. Bottom: 26mm. Hole diameter: 5mm.
Catalog Number: 59584-230
Supplier: VWR International


Small Business Enterprise

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