You Searched For: 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.

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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Supplier: Kemtech America
Description: Solid glass penny head stopper.

Small Business Enterprise Minority or Woman-Owned Business Enterprise

Supplier: Hirschmann
Description: BIO-SILICO® stoppers are manufactured in a special process which have regular pores, thus making them ideal for the preparation and sterilization of culture media

Supplier: Foxx Life Sciences
Description: These Borosil® pennyhead stoppers are made of 3.3 borosilate glass.

Supplier: United Scientific Supplies
Description: Convenient assortments of various sizes of rubber stoppers are sold as one-pound bags.

Catalog Number: (100489-492)
Supplier: Electron Microscopy Sciences

Minority or Woman-Owned Business Enterprise


Supplier: Kemtech America
Description: Heavy wall design.

Small Business Enterprise Minority or Woman-Owned Business Enterprise

Supplier: Chemglass
Description: Suba-Seal® Septum Stoppers are made from natural red rubber.

Small Business Enterprise

Supplier: Chemglass
Description: Sleeve type stoppers with hollow plugs and sleeve extensions.

Small Business Enterprise

Supplier: Hirschmann
Description: Stoppers made of TS polyethylene.

Supplier: Chemglass
Description: For use with the Double Bank, Inert Gas or Single Bank, Inert Gas manifolds or any Airfree® component with an O-Ring as a closure.

Small Business Enterprise

Supplier: Chemglass
Description: Vented polyethylene stopper to minimize evaporation from dewar flasks.

Small Business Enterprise

Supplier: Electron Microscopy Sciences
Description: Manufactured from the highest quality raw materials.

Minority or Woman-Owned Business Enterprise

Supplier: Freudenberg Medical
Description: Pharmaceutical-grade, platinum-cured silicone stoppers provide a tight, reliable seal for glass tubes, vials, and flasks

Supplier: Heathrow Scientific
Description: These stoppers are lightweight yet very strong to reduce chipping and breakage, thus minimizing replacement costs.

Supplier: NewAge Industries
Description: This is a custom stopper assembly molded, GL45 with two holes.

Small Business Enterprise

Catalog Number: (76252-632)
Supplier: VALUE PLASTICS TE
Description: Luer Plugs, Value Plastics


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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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