Lenz-Laborglas Round Bottom Test Tube NS 14/23, Ø 18 mm × 150 mm (DURAN® Tubing, Without Stopper)

The Lenz-Laborglas round bottom test tube with NS 14/23 ground-joint socket (Ø 18 mm × 150 mm) is crafted from premium DURAN® borosilicate glass, offering excellent thermal and chemical resistance. Supplied without a stopper, this tube is ideal for laboratory applications where custom closures or adapters are used.

Key Features:

• Brand: Lenz-Laborglas
• Shape: Round bottom for uniform heating and efficient mixing
• Socket Size: NS 14/23 ground-joint for secure standard connections
• Dimensions: Ø 18 mm × 150 mm length
• Material: DURAN® tubing — premium borosilicate glass for high durability
• Closure: Without stopper (no closure included)
• Application: Suitable for heating, distillation, chemical reactions, and modular glass-joint setups

The Lenz-Laborglas NS 14/23 test tube blends precision workmanship, durable materials, and flexibility in closure design—making it a reliable choice for research, analytical, 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 used for?

It is crafted from premium DURAN® borosilicate glass, offering excellent thermal and chemical resistance. Supplied without a stopper, this tube is ideal for laboratory applications where custom closures or adapters are used.

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

Yes. It is designed for heating, distillation, chemical reactions, and modular glass-joint setups, and offers round bottom for uniform heating and efficient mixing and NS 14/23 ground-joint for secure standard connections to support this kind of work.

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

It has round bottom for uniform heating and efficient mixing, NS 14/23 ground-joint for secure standard connections 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, premium borosilicate glass for high durability. It also offers without stopper (no closure included).