Lenz-Laborglas Round Bottom Test Tube NS 14/23, Ø 18 mm × 180 mm, DURAN® Tubing, Hollow Stopper

The Lenz-Laborglas round bottom test tube with NS 14/23 socket (Ø 18 mm × 180 mm) is manufactured from premium DURAN® borosilicate glass, offering excellent thermal and chemical resistance. Supplied with a hollow glass stopper, this test tube is ideal for laboratory applications involving sealed heating, mixing, and reaction processes. :contentReference[oaicite:0]{index=0}

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 glassware
• Dimensions: Ø 18 mm × 180 mm length
• Material: DURAN® tubing — high-performance borosilicate glass for durability and resistance
• Closure: Hollow glass stopper included for reliable sealing
• Application: Suitable for heating, distillation, chemical reactions, and laboratory glassware systems

The Lenz-Laborglas NS 14/23 test tube delivers precision craftsmanship, durable materials, and a high-quality sealed closure—making it a dependable choice for research, analytical, and industrial laboratory environments.