Description
Our B19 Cone to Rubber Tube Adapter delivers seamless connections between standard laboratory glassware and flexible rubber tubing. Built from premium borosilicate glass, this straight adapter provides reliable performance across heating, cooling, and chemical transfer operations while maintaining structural integrity in demanding lab conditions.
- Premium borosilicate glass for superior chemical and thermal resistance
- Standard B19 cone joint compatible with most laboratory glassware
- Straight design minimizes dead space and maximizes flow efficiency
- Fits standard laboratory rubber tubing sizes
- Durable, reusable alternative to disposable plastic adapters
- Ideal for distillation, reflux, vacuum filtration, and gas transfer systems
Why SGC Labs?
We manufacture precision scientific glassware to exacting standards for research labs, universities, and industrial facilities worldwide. Our adapters combine engineered precision with practical functionality—designed for accuracy, safety, and long-term reliability in your critical applications. Every piece undergoes rigorous quality control to ensure consistent performance.
Order your B19 cone to rubber tube adapter today and upgrade your lab’s connection reliability and workflow efficiency.


