Foam Stopper 35mm - 45mm

  • Sale
  • Regular price $ 2.99
Shipping calculated at checkout.


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