"SILICO & chemical PORCELAIN SE"
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Rubber Stoppers
A superior grade of rubber that has softness, resiliency, and durability
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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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Student Cork Assortment
A convenient assortment for student use.
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Assorted Rubber Stoppers
Solid, 1-hole and 2-hole stoppers in assorted sizes.
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Polypropylene Stoppers
These lightweight and durable polypropylene stoppers are acid proof and autoclavable.
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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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XXXX Quality Corks
XXXX Quality Corks have a fine grain and are ideal for use as tight-fitting stoppers.
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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.
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Twistit® Stopper Assortment
Solid, One-Hole, Two-Hole, and Three-Hole Rubber Stoppers in One Unit.
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Regular Length Cork Assortments
Each package contains 100 corks of assorted sizes in the range indicated.
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Quality Corks, XX
Size Top Diameter Bottom Diameter
Size 1 11.1 mm 8.3 mm
Size 2 12.7 mm 9.5 mm
Size 3 14.2 mm 10.7 mm
Size 4 15.8 mm 11.9 mm
Size 6 19.0 mm 14.6 mm
Size 20 41.2 mm 34.0 mm
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Cork Stoppers, United Scientific Supplies
Cork stoppers function as a closure for bottles, vials, laboratory vessels and other openings.