The Lenz-Laborglas round bottom test tube with NS 19/26 socket (Ø 22 mm × 150 mm) is manufactured from high-quality DURAN® borosilicate glass, ensuring excellent chemical and thermal resistance. Supplied with a hollow glass stopper, it provides a reliable seal for laboratory applications such as heating, distillation, and reaction processes.
The Lenz-Laborglas NS 19/26 test tube offers precision, durability, and secure sealing—making it an essential component in research, industrial, and educational laboratory environments.
Just add items to your shopping cart and select “Instant Quote”