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Creating a vacuum-tight seal in laboratory apparatuses, the silicone stoppers protect contained solutions and media from being affected by outside elements. The chemically neutral construction is compatible with even abrasive working solvents. With the material also being characteristically resistant to extreme temperatures, the closures will resist cracking when subjected to heating procedures and are autoclavable for reuse. Silicone stoppers have a tapered bottom in various diameter sizes to fit any vessel.

Creating a vacuum-tight seal in laboratory apparatuses, the silicone stoppers protect contained solutions and media from being affected by outside elements. The chemically neutral construction is compatible with even abrasive working solvents. With the material also being characteristically resistant to extreme temperatures, the closures will resist cracking when subjected to heating procedures and are autoclavable for reuse. Silicone stoppers have a tapered bottom in various diameter sizes to fit any vessel.


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Catalog Number: (11310-712)
Supplier: Freudenberg Medical
Description: Platinum-cured stoppers provide tight, reliable sealing for glass tubes, vials, and flasks. Made with silicone elastomer that meets USP Class VI biocompatibility requirements. Full lot traceability. Size 10. Top diameter 50mm. Bottom diameter 42mm. Length 25mm.


Catalog Number: (66111-368)
Supplier: Saint Gobain Performance Plastics
Description: Silicone stoppers, Versilic®

Catalog Number: (11310-728)
Supplier: Freudenberg Medical
Description: Silicone stoppers, HelixMark®, Size: 2


Catalog Number: (11310-736)
Supplier: Freudenberg Medical
Description: Silicone stoppers, HelixMark®, Size: 000


Catalog Number: (11310-716)
Supplier: Freudenberg Medical
Description: Platinum-cured stoppers provide tight, reliable sealing for glass tubes, vials, and flasks. Made with silicone elastomer that meets USP Class VI biocompatibility requirements. Full lot traceability. Size 8. Top diameter 41mm. Bottom diameter 33mm. Length 25mm.


Catalog Number: (11310-718)
Supplier: Freudenberg Medical
Description: Platinum-cured stoppers provide tight, reliable sealing for glass tubes, vials, and flasks. Made with silicone elastomer that meets USP Class VI biocompatibility requirements. Full lot traceability. Size 7. Top diameter 37mm. Bottom diameter 30mm. Length 25mm.


Catalog Number: (11310-722)
Supplier: Freudenberg Medical
Description: 4947856


Catalog Number: (11310-714)
Supplier: Freudenberg Medical
Description: 4947856

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
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The original product is no longer available. The replacement shown is available.
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