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.
Rubber Stoppers, 2 Hole, United Scientific Supplies
Supplier: United Scientific Supplies
These solid black stoppers are made of solid natural rubber that stays pliable over a long period of time.
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BIO-SILICO® Silicone Stoppers, Hirschmann
Supplier: Hirschmann
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
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Rubber Stopper Assortments, United Scientific Supplies
Supplier: United Scientific Supplies
Convenient assortments of various sizes of rubber stoppers are sold as one-pound bags.
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Borosil® Pennyhead Stoppers, Clear, Solid, Foxx Life Sciences
Supplier: Foxx Life Sciences
These Borosil® pennyhead stoppers are made of 3.3 borosilate glass.
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PYREX® Hollow Full Length [ST] Stoppers, Corning
Supplier: Corning
Hollow, full length stopper closed at the bottom from PYREX®, borosilicate glass.
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KIMBLE® Silicone Stoppers, DWK Life Sciences
Supplier: DWK Life Sciences (KIMBLE)
Designed for use in centrifugal separators and gas sampling tubes. Blind hole stopper features easy syringe penetration.
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Synthware Solid Pennyhead [ST] Stoppers, Glass, Kemtech America
Supplier: Kemtech America
Solid glass penny head stopper.
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Synthware Stopper, Cap Design, Kemtech America
Supplier: Kemtech America
Designed for use with an apparatus equipped with an inner opening.
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Rubber Stoppers, 1 Hole, United Scientific Supplies
Supplier: United Scientific Supplies
Solid, black stoppers contain a high percentage of pure rubber and weigh less than neoprene.
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Polypropylene Stoppers
Supplier: Wards
These lightweight and durable polypropylene stoppers are acid proof and autoclavable.
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Stoppers, Penny-Head, Glass, Solid, Chemscience
Supplier: CHEM SCIENCE INC CA
Solid penny head glass stoppers are with an interchangeable ground joint.
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Stoppers/Adapters, Extraction Nut, 3/4" NPT, Chemglass
Supplier: Chemglass
PTFE stopper adapter is similar to CG-3002-L but with the addition of one female NPT port in the center.
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Synthware PTFE Stoppers, Solid and Hollow
Supplier: Kemtech America
PTFE stopper features a nylon extraction nut that permits easy removal of the stopper from the glass outer joint.
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Flathead Stoppers, Color-Coded, [ST] Bottle and Apparatus Style, Kimble Chase
Supplier: DWK Life Sciences (KIMBLE)
Use these flathead PTFE stoppers with bottles and ground jointed ware
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Regular Length Cork Assortments
Supplier: Manton Industrial
Each package contains 100 corks of assorted sizes in the range indicated.
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Threaded Stopper for FireflySci Type 701M/701MFL Cuvettes
Supplier: FIREFLYSCI, INC.
Designed for use with Type 701M/701MFL cuvettes from FireflySci.



