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Where is the best place to purchase the Rubber Stoppers; 2-Hole; various sizes?

April 26, 2017best purchase rubber shopping stoppers various

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Where is the best place to purchase the Rubber Stoppers; 2-Hole; various sizes?

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Rubber Stoppers and Corks Use these sturdy rubber stoppers and corks to contain liquids in test tubes and flasks. They 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 stoppers for 250 ml flasks. Sources: http://www.hometrainingtools.com/category.asp?