Eisco Size K Solid Rubber Stopper

Eisco Size K Solid Rubber Stopper (32–38 mm top, 35 mm length)

The Eisco Size K Solid Rubber Stopper provides robust sealing for wide test tubes, small reagent bottles and laboratory flasks.

Constructed from durable natural rubber, this stopper resists wear from heat and chemicals while retaining elasticity for repeated use. Its broad conical shape ensures a stable fit across varied glassware, and the smooth surface supports consistent leak-free closure.

Practical Applications
– Closure for reagent bottles in teaching labs
– Sealing wide-neck flasks in research and microbiology
– General use as a rubber bung in industrial setups

Key Features
– Conical stopper for 32–38 mm openings
– Smooth finish for secure sealing
– Resistant to laboratory reagents
– Flexible, reusable design

Quality & Standards
– Made from high grade natural rubber
– Designed for repeated sterilisation

Specifications
– Size: K
– Top diameter: 32–38 mm
– Length: 35 mm
– Material: Natural rubber
– Brand: Eisco Labs

The Eisco Size K stopper offers strong, reusable closure for flasks and bottles with wider openings.

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