A PLUS 3‑Neck Round Bottom Jointed Flask – 250ml (Centre 24/29, Angled 19/26 Joints)

The A PLUS 3‑Neck Round Bottom Flask, 250ml is a premium yet great‑value piece of laboratory glassware manufactured from ASTM‑accredited 3.3 borosilicate glass. Designed for durability and precision, it offers outstanding thermal and chemical resistance, ensuring long‑lasting performance in demanding laboratory environments. This flask is fully compatible with Quickfit‑style glassware, making it an ideal and cost‑effective alternative for schools and professional labs.

Featuring a central 24/29 joint and two angled 19/26 side joints, the flask is perfect for multi‑step setups such as reflux, distillation, and controlled reactions. Its round bottom design ensures uniform heating, while the three‑neck configuration allows easy access for thermometers, condensers, dropping funnels, and gas inlets.

Key Features

• 250ml round bottom flask with 3 jointed necks
• Centre joint: 24/29 • Side joints: angled 19/26
• Made from ASTM‑accredited 3.3 borosilicate glass
• High thermal and chemical resistance for repeated heating and cooling cycles
• Compatible with all standard Quickfit‑type components
• Ideal for reflux, distillation, multi‑reagent additions and controlled reactions
• Three‑neck design allows simultaneous access for multiple pieces of apparatus

Ideal for School Science Lessons & Advanced Chemistry Practicals

Perfect for GCSE and A‑Level chemistry, this 3‑neck round bottom flask enables students to safely explore more complex organic and inorganic reactions. It supports multi‑stage experimental setups commonly used in higher‑level science education.

• Reflux experiments using condensers on the main or side joints
• Distillation and separation techniques with additional access for thermometers or funnels
• Gas delivery and controlled reagent addition through the angled necks
• Organic synthesis demonstrations requiring uniform heating
• Safe handling of multi‑component reactions by teachers and technicians

Durable, versatile, and compatible with standard school laboratory equipment, the A PLUS 3‑Neck Round Bottom Flask is an excellent choice for supporting engaging, hands‑on chemistry learning.