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

This durable 250ml Wide Neck Round Bottom Flask is ideal for handling larger liquid volumes in school laboratories. Made from strong 3.3 borosilicate glass, it provides outstanding thermal and chemical resistance for a variety of heating and mixing tasks.

The wide neck makes pouring, cleaning, and equipment insertion easier, and the flask meets ISO 24450 standards for laboratory reliability.

Key Features

• 250ml capacity
• High‑grade borosilicate glass
• Wide neck design
• Beaded rim for added strength
• Complies with ISO 24450
• Compatible stoppers: Solid 40mm, 1‑hole 40mm, 2‑hole 40mm

Ideal for School Science Lessons & Prep Rooms

• Heating and boiling liquid samples
• Distillation and organic chemistry demonstrations
• Easy filling and cleaning between lessons
• Suitable for GCSE & A‑Level chemistry

A robust and spacious wide‑neck flask for versatile school laboratory use.