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 Stopper Assortments, United Scientific Supplies
Supplier: United Scientific Supplies
Convenient assortments of various sizes of rubber stoppers are sold as one-pound bags.
Expand 4 Items
Synthware Solid Pennyhead [ST] Stoppers, Glass, Kemtech America
Supplier: Kemtech America
Solid glass penny head stopper.
Expand 6 Items
Synthware Stopper, Cap Design, Kemtech America
Supplier: Kemtech America
Designed for use with an apparatus equipped with an inner opening.
Expand 4 Items
Rubber Stoppers
Supplier: United Scientific Supplies
A superior grade of rubber that has softness, resiliency, and durability
Expand 2 Items
Hollow Pennyhead [ST] Stoppers, Chemglass
Supplier: Chemglass
Hollow glass stoppers with closed bottom.
Expand 12 Items
SILCOSEN® Silicone Stoppers, Hirschmann
Supplier: Hirschmann
SILICOSEN® stoppers are manufactured in a special process which have regular pores, thus making them ideal for the preparation and sterilization of culture media
Expand 25 Items
WHEATON® Rubber Stoppers, DWK Life Sciences
Supplier: DWK Life Sciences (KIMBLE)
Clean and precise pharmaceutical grade rubber stoppers for research/parenteral drug applications.
Expand 3 Items
Stoppers for Wheaton® CompletePAK® Sterile Vials, DWK Life Sciences
Supplier: DWK Life Sciences (KIMBLE)
CompletePAK®
Expand 6 Items
Cork Discs , Electron Microscopy Sciences
Supplier: Electron Microscopy Sciences
These discs are 20 mm diameter and are 3 mm thick. Perfect to be used with a cryostat.
Expand 1 Items
Synthware Pennyhead, Flask Length [ST] Stopper, Glass, Kemtech America
Supplier: Kemtech America
Heavy wall design.
Expand 7 Items
Solid Pennyhead Stoppers, Chemglass
Supplier: Chemglass
Solid stoppers have closed bottom.
Expand 2 Items
Silicone Stoppers, United Scientific Supplies
Supplier: United Scientific Supplies
Chemical resistant solid silicone stoppers.
Expand 13 Items
PTFE Key-Head [ST] Stoppers, Flask Length Joint, Kimble Chase
Supplier: DWK Life Sciences (KIMBLE)
Stoppers are for use with flasks, mixing cylinders, separatory funnels, and more
Expand 9 Items
Student Cork Assortment
Supplier: Manton Industrial
A convenient assortment for student use.
Expand 1 Items
Assorted Rubber Stoppers
Supplier: Plasticoid
Solid, 1-hole and 2-hole stoppers in assorted sizes.
Expand 2 Items
Solid Rubber Stoppers, United Scientific Supplies
Supplier: United Scientific Supplies
Solid, black stoppers contain a high percentage of pure rubber and weigh less than neoprene.



