A PLUS Jointed Round‑Bottom Flask – 25ml, 14/23 Joint

The A PLUS Jointed Round‑Bottom Flask (25ml, 14/23) is part of a high‑quality yet cost‑effective range of ASTM‑accredited 3.3 borosilicate glassware. Designed for durability, heat resistance, and chemical stability, this flask performs to professional laboratory standards while offering excellent value. It is fully equivalent to and compatible with Quickfit® jointed glassware systems.

The classic round‑bottom design ensures even heat distribution, making it ideal for heating, boiling, refluxing, and a range of small‑scale chemistry experiments. Its precision‑ground 14/23 joint offers a secure and leak‑free connection when used with other jointed components, ensuring reliable performance in school or research environments.

Key Features

• 25ml round‑bottom flask with 14/23 joint
• Manufactured from ASTM‑accredited 3.3 borosilicate glass
• Compatible with Quickfit® jointed glassware
• Excellent thermal and chemical resistance
• Ideal for heating, refluxing, distillation, and small‑scale synthesis
• Durable, clear laboratory‑grade construction suitable for repeated use

Ideal for School Science Lessons

Perfect for GCSE, A‑Level, IB, and undergraduate chemistry, this 25ml round‑bottom flask is used widely for teaching essential laboratory techniques. Its small capacity makes it especially suitable for micro‑scale organic and inorganic experiments, minimising chemical use while allowing accurate, meaningful results.

• Suitable for reflux reactions with small quantities
• Used in distillation setups with jointed glassware
• Ideal for heating, mixing, and controlled reaction environments
• Supports technician preparation for class practicals and demos
• Helps students learn professional laboratory techniques safely and effectively

Robust, precise, and laboratory‑trusted, the A PLUS Jointed Round‑Bottom Flask 25ml (14/23) is a valuable addition to any school or laboratory glassware collection.