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
A superior grade of rubber that has softness, resiliency, and durability
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Rubber Stoppers, 1 Hole, United Scientific Supplies
Solid, black stoppers contain a high percentage of pure rubber and weigh less than neoprene.
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2-Hole Natural Rubber Stoppers
These stoppers are made of a superior grade of rubber that has softness, resiliency, and durability.
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Twistit® Rubber Stoppers
An outstanding advance in rubber stoppers, four stoppers in one reduce inventory confusion and cost.
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1-Hole Natural Rubber Stoppers
Superior Grade Rubber Offers Softness, Resiliency, and Durability.
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Student Cork Assortment
A convenient assortment for student use.
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XXXX Quality Corks
XXXX Quality Corks have a fine grain and are ideal for use as tight-fitting stoppers.
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Assortment of Solid Rubber Stoppers
One Pound of Solid Rubber Stoppers in Various Sizes.
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Assortment of One-Hole Rubber Stoppers
One Pound of One-Hole Rubber Stoppers in Various Sizes.
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Assortment of Two-Hole Rubber Stoppers
One Pound of Two-Hole Rubber Stoppers in Various Sizes.
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Assorted Rubber Stoppers
Solid, 1-hole and 2-hole stoppers in assorted sizes.
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Cork Assortment
Regular length, XX quality corks in convenient assortments for laboratory use. Packaged with equal amounts of each size.
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Cork, XX Quality, Size 7
These natural corks are perfect for laboratory and industrial use! This pack of 100 corks are ideal for closing up your lab bottles and jars.
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Cork, Size 28
This XXXX quality corks has a fine grain and is ideal for use as tight-fitting a stopper.