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Low density, high density, or standard plastic stoppers gently insert into vessels to provide a vacuum tight seal. The cost efficient alternatives do not require the preparative greasing like ground glass counterparts. Solid or hollow models may feature a gripping handle or rotating nuts for easy application and extraction. Available in different diameter sizes, the PE, LDPE, and HDPE stoppers selection promises to close any apparatus to keep contents unpolluted.

Low density, high density, or standard plastic stoppers gently insert into vessels to provide a vacuum tight seal. The cost efficient alternatives do not require the preparative greasing like ground glass counterparts. Solid or hollow models may feature a gripping handle or rotating nuts for easy application and extraction. Available in different diameter sizes, the PE, LDPE, and HDPE stoppers selection promises to close any apparatus to keep contents unpolluted.


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Description: Inert and chemically resistant solid PTFE stoppers for use with standard ground glass joints.
Catalog Number: 89026-340
Supplier: VWR International


Description: Stoppers are molded from elastomeric formula 4432/50 Gray. This formula has extremely low levels of organic and metallic extractables and does not contain plasticizers, 2-Mercaptobenzothiazole, nitrosamine precursors, or natural rubber latex.
Catalog Number: 80079-866
Supplier: VWR International

Description: Stoppers are made from PTFE material, and are designed for use with laboratory glassware such as flasks and separatory funnels.
Catalog Number: 76305-718
Supplier: Glassco


Description: Stop plug is made of Polyetheretherketone.
Catalog Number: 10500-514
Supplier: GE Healthcare - Life Sciences

Product available on GSA Advantage®


Description: Standard taper, flask-length PTFE stoppers with easy-to-grip handle
Catalog Number: 89076-964
Supplier: Ace Glass

Small Business Enterprise


Description: Standard taper, Solid PTFE stoppers with easy-to-grip handle.
Catalog Number: 89076-968
Supplier: Ace Glass

Small Business Enterprise Product available on GSA Advantage®


Description: For items ground to [ST] stopper dimensions
Catalog Number: 89000-807
Supplier: DWK Life Sciences (KIMBLE)

Description: Virgin TFE/PTFE stoppers with built-in black Delrin stopper extractor ring
Catalog Number: 89076-996
Supplier: Ace Glass

Small Business Enterprise Product available on GSA Advantage®


Description: Standard taper, hollow polyethylene stoppers with flat top.
Catalog Number: 89077-006
Supplier: Ace Glass

Small Business Enterprise


Description: These polyethylene cup-type stoppers fit tightly yet remove easily.
Catalog Number: 13196-088
Supplier: Bel-Art Products


Description: These PYREX® No.13 stoppers are made from linear HDPE and have closed bottoms to conform to Standard Taper stopper dimensions.
Catalog Number: 59492-041
Supplier: Corning

Description: Hollow Teflon® PTFE stoppers are designed for boiling and distilling flasks with ground joints.
Catalog Number: 70680-186
Supplier: Bel-Art Products


Description: Solid plug stoppers are designed for sealing column ends
Catalog Number: 89084-370
Supplier: Ace Glass

Small Business Enterprise Product available on GSA Advantage®


Description: Solid plug stoppers are designed for sealing column ends.
Catalog Number: 76318-504
Supplier: Ace Glass

Small Business Enterprise Product available on GSA Advantage®


Description: Teflon® PTFE body with Viton® O-Ring for airtight vacuum work.
Catalog Number: 70680-394
Supplier: Bel-Art Products


Description: These precision made PTFE stoppers are for use at either end of Michel-Miller columns, or on other Ace-Thred connections, when a leak-tight seal without the use of o-rings is desired
Catalog Number: 89052-108
Supplier: Ace Glass

Small Business Enterprise Product available on GSA Advantage®


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