Lenz-Laborglas Round Bottom Test Tube NS 14/23 Ø 18 mm × 150 mm with Hollow Stopper

The Lenz-Laborglas round bottom test tube featuring an NS 14/23 ground-joint socket (Ø 18 mm × 150 mm) is manufactured from high-quality DURAN® tubing. Designed for laboratory applications requiring reliable sealing, this model includes a hollow glass stopper and is ideal for heating, mixing, distillation, or reaction workflows.

Key Features:

• Brand: Lenz-Laborglas
• Shape: Round bottom — promotes uniform heating and efficient mixing
• Socket Size: NS 14/23 ground-joint for secure compatibility with standard lab glassware
• Dimensions: Ø 18 mm × 150 mm length
• Material: DURAN® tubing – borosilicate glass designed for durability and high chemical/thermal resistance
• Closure: Hollow glass stopper included for tight sealing
• Application: Suitable for laboratory heating, chemical reactions, sample preparation, and modular glass-joint setups

The Lenz-Laborglas NS 14/23 test tube offers precision, durability, and a high-quality sealing solution — making it a dependable choice for research, educational, and industrial laboratory environments.