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Silicone Stoppers

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Silicone Stoppers

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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Description:   M30 blind stopper
Catalog Number: 76333-452
Supplier: Chemglass



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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 6. Top diameter 32mm. Bottom diameter 26mm. Length 25mm.
Catalog Number: 11310-720
Supplier: Freudenberg Medical



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Catalog Number: 75996-706
Supplier: Hirschmann



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Catalog Number: 75996-764
Supplier: Hirschmann



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Description:   25mm Filtration Assemblies with No. 5 Stopper Connections, With Stainless Steel Support. This unit is designed for filtering viscous or proteinaceous solutions or to produce ultraclean filtrate.
Catalog Number: 27589-092
Supplier: DWK Life Sciences (KIMBLE)


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Catalog Number: 470339-174
Supplier: United Scientific Supplies



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Catalog Number: 470339-738
Supplier: United Scientific Supplies



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Catalog Number: 75996-678
Supplier: Hirschmann



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Description:   Bottom: 87. Top: 100. H: 65. Non-toxic and chemically and biologically neutral. Highly recommended for all tissue culture work. Suitable for temperatures between -70[degree]C and + 250[degree]C. Odorless and tasteless. Non-adherent and resistant to aging.
Catalog Number: 66111-294
Supplier: Saint Gobain Life Sciences



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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 9. Top diameter 45mm. Bottom diameter 37mm. Length 25mm.
Catalog Number: 11310-714
Supplier: Freudenberg Medical



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Catalog Number: 470338-876
Supplier: United Scientific Supplies



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Description:   Bottom: 47. Top: 55. H: 40. Non-toxic and chemically and biologically neutral. Highly recommended for all tissue culture work. Suitable for temperatures between -70[degree]C and + 250[degree]C. Odorless and tasteless. Non-adherent and resistant to aging.
Catalog Number: 66111-280
Supplier: Saint Gobain Life Sciences



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Catalog Number: 470340-132
Supplier: United Scientific Supplies



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Description:   Style; Blind Hole. Stopper O.D. (mm); 6 Silicone stopper used in centrifugal separators, gas sampling tubes and the 672800 septum holder. Stopper features easy syringe penetration and comes in a choice of hole styles.
Catalog Number: KT774200-0022
Supplier: DWK Life Sciences (KIMBLE)



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Catalog Number: 75996-692
Supplier: Hirschmann



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Catalog Number: 75996-682
Supplier: Hirschmann



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