Features…
- All of our black rubber stoppers are laboratory grade.
- They are made of solid natural rubber that stays pliable over a long period of time.
- Ideal for use with non-aggressive or concentrated solutions. Low sulfur content.
- Withstands laboratory conditions without hardening.
- Working temperatures from –25 to 70°C (–13 to 158°F).
Fits these Test Tubes:
- 25x150mm
- 25x200mm
See our Rubber Stopper Size Chart for top, bottom and length specs of our other stoppers.
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