Description
Reusable, non-absorbent, white foam stoppers provide a snug fit, yet allow free airflow. Ideal for Erlenmeyer flasks when propogating yeast cultures.
- Autoclavable up to 249°F (121°C)
- Fits 35-45mm inner diameter openings in graduated cylinders, tubes, and flasks
- Easily manipulated – springs back to original shape after use
- Resists alcohols, bases, esters, and dilute acids
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