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.

Frequently Asked Questions

1. What is the Lenz-Laborglas Round Bottom Test Tube NS 14/23, Ø 18 mm × 150 mm, with Hollow Stopper used for?

It 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.

2. Is this product suitable for laboratory heating, chemical reactions, sample preparation, and modular glass-joint setups?

Yes. It is designed for laboratory heating, chemical reactions, sample preparation, and modular glass-joint setups, and offers round bottom, promotes uniform heating and efficient mixing and NS 14/23 ground-joint for secure compatibility with standard lab glassware to support this kind of work.

3. What shape and socket size does this product have?

It has round bottom, promotes uniform heating and efficient mixing, NS 14/23 ground-joint for secure compatibility with standard lab glassware and Ø 18 mm × 150 mm length.

4. What is this product made from and what features does it include?

It is made from DURAN® tubing – borosilicate glass designed for durability and high chemical/thermal resistance. It also offers hollow glass stopper included for tight sealing.