Our high-quality rubber stoppers (size 8) are designed to meet the stringent requirements of various laboratory applications. These stoppers are soft, non-greasy, and provide a secure seal, making them an essential component in any lab setting. Each stopper features two holes, making them perfect for applications requiring multiple insertions or venting options. Additionally, they are perfectly compatible with our 1000 mL Erlenmeyer flask and 1000 mL flat bottom boiling flask, ensuring a reliable fit for your specific needs.
 
Features
 
Material: Soft, high-quality rubber
Durometer: 45 (ensuring optimal flexibility and sealing capability)
Dimensions:
Top Diameter: 41mm
Height: 25mm
Bottom Diameter: 33mm
Quantity: Approximately 14 stoppers per one-pound pack
Design: Two holes (ideal for multiple insertions or venting options)
Compatibility: Fits our 1000 mL Erlenmeyer flask and 1000 mL flat bottom boiling flask perfectly