Labglass Round Bottom Flask – 25ml (Narrow Neck, Borosilicate Glass)

This high‑quality 25ml Labglass Round Bottom Flask is manufactured from durable 3.3 borosilicate glass, delivering excellent resistance to thermal shock and chemical corrosion. Featuring a narrow neck with beaded rim, it offers secure handling and compatibility with a range of rubber stoppers.

The flask conforms to ISO 1773, ensuring consistent wall thickness and precision for heating, boiling, and distillation tasks in school laboratories.

Key Features

• 25ml capacity
• Made from 3.3 borosilicate glass
• Narrow neck with beaded rim
• ISO 1773 compliant
• Suitable for heating and boiling applications
• Compatible stoppers: Solid 17mm & 1‑hole 17mm

Ideal for School Science Lessons & Prep Rooms

• Heating small liquid samples
• Demonstrating boiling, evaporation, and distillation
• Preparing chemical mixtures for practical work
• Supporting GCSE and A‑Level chemistry experiments

A compact and reliable round bottom flask ideal for precise laboratory heating tasks.