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Rubber Stoppers & Corks

Use these sturdy rubber stoppers and lab-grade corks to contain liquids in test tubes and flasks.

Rubber Stoppers & Corks

Stoppers fit tightly to prevent chemical leaks. Our 5 mm glass tubing fits in the one- or two-hole rubber stoppers. For small test tubes use #00 stoppers. Use #0 for large test tubes, and #1 for extra large. Use #6.5 stoppers for 250 ml flasks. Use a cork borer to drill holes in the corks.

Use our quick & easy guide to identify the size of stopper you need.

Save when you buy 10 or more of one of these stoppers!

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Grid List

Set Descending Direction

Items 1-16 of 43

per page
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  2. 2
  3. 3