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

This 250ml Wide Neck Conical Flask is ideal for mixing, heating, and preparing solutions in school science labs. The wide neck design offers easier filling and cleaning compared to narrow‑neck versions.

Manufactured from durable 3.3 borosilicate glass and compliant with ISO 24450, it includes a strong beaded rim and compatibility with a range of rubber stoppers.

Key Features

• 250ml capacity
• Wide neck for easy access
• 3.3 borosilicate glass construction
• Beaded rim for durability
• ISO 24450 compliant
• Compatible stoppers: Solid 40mm, 1‑hole 40mm, 2‑hole 40mm

Ideal for School Science Lessons & Prep Rooms

• Mixing and heating larger liquid samples
• Demonstrations and student practical work
• Easy insertion of probes or thermometers
• Suitable for GCSE and A‑Level chemistry

A versatile wide‑neck conical flask designed for comfortable handling and routine science use.