Eisco Size P Solid Rubber Stopper (38mm Bottom, 42mm Top, 40mm Length)
The Eisco Size P Solid Rubber Stopper is designed for sealing large laboratory flasks and storage bottles.
Made from resilient natural rubber, this stopper resists degradation from heat and common reagents while maintaining a flexible, tight seal. Its wide conical taper ensures stability in large vessels, while the smooth surface prevents leaks and protects glassware.
Practical Applications
– Closure for large Erlenmeyer or round bottom flasks
– Sealing wide reagent and storage bottles
– Use in industrial or teaching laboratories with large glassware
Key Features
– Natural rubber construction for reuse
– Resistant to heat and laboratory chemicals
– Smooth finish ensures leak prevention
Quality & Standards
– Manufactured from durable natural rubber
– Suitable for repeated sterilisation
Specifications
– Size: P
– Top diameter: 42 mm
– Bottom diameter: 38 mm
– Length: 40 mm
– Material: Natural rubber
– Brand: Eisco
The Eisco Size P stopper provides a robust solution for sealing large laboratory flasks and bottles.






