Rubber Stopper Size #4 - Solid - 10 Pack
Pack of 10 size #4 rubber stoppers suitable for test tubes and erlenmeyer flasks.
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Rubber test tube stoppers suitable for Glass or Plastic Test Tubes and Erlenmeyer Flasks. These long lasting stoppers are made from excellent grade rubber, with a low sulfur content. Contains 10 Size 4 stoppers.
|Material||Chemical Resistant Rubber|
|# of Holes||0|
Not sure what size stopper to use? See our handy Rubber Stopper Size Chart for help