Rubber Stopper Size #21 - Solid

Size #21 solid, rubber stopper suitable for test tube and/or Erlenmeyer flask.
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Rubber test tube stoppers suitable for Erlenmeyer Flasks. These long lasting stoppers are made from excellent grade rubber, with a low sulfur content. Contains 1 Size 21 stopper.

Material Chemical Resistant Rubber
Size #21
Top (mm) 61
Bottom (mm) 52
Height (mm) 39
# of Holes 0
Pack Size 1

Not sure what size stopper to use? See our handy Rubber Stopper Size Chart for help

More Information
Length (cm) 5
Width (cm) 5
Height (cm) 7
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