Labglass Round Bottom Flask – 250ml (Narrow Neck, Borosilicate Glass)

This 250ml Labglass Round Bottom Flask provides excellent performance for heating and boiling tasks in school laboratories. Manufactured from 3.3 borosilicate glass, it offers exceptional resistance to high temperatures and chemical corrosion.

Featuring a narrow neck with beaded rim, it meets ISO 1773 standards for accuracy and durability. Compatible with a range of stoppers for secure laboratory use.

Key Features

• 250ml capacity
• High‑quality 3.3 borosilicate glass
• Narrow neck with beaded rim
• ISO 1773 compliant
• Excellent thermal and chemical resistance
• Compatible stoppers: Solid 27mm, 1‑hole 27mm, 2‑hole 27mm

Ideal for School Science Lessons & Prep Rooms

• Boiling and heating larger liquid volumes
• GCSE and A‑Level organic chemistry demonstrations
• Use in distillation or reflux setups
• Technician preparation of solutions

A versatile and durable flask designed for demanding chemistry experiments.