A PLUS Jointed Round‑Bottom Flask – 100ml, 19/26 Joint

The A PLUS Jointed Round‑Bottom Flask (100ml, 19/26) forms part of a high‑quality yet better‑value collection of ASTM‑accredited 3.3 borosilicate glassware. Designed for professional laboratory performance, this flask is fully compatible with Quickfit® jointed components, making it ideal for both educational and research environments.

Its traditional round‑bottom design ensures even heat distribution and excellent resistance to thermal shock, making it suitable for heating, refluxing, boiling, distillation, and chemical synthesis. The precision‑ground 19/26 joint provides a secure, leak‑free connection, guaranteeing reliable performance during repeated use.

Key Features

• 100ml round‑bottom flask with 19/26 ground‑glass joint
• Manufactured from ASTM‑accredited 3.3 borosilicate glass
• Fully equivalent to and compatible with Quickfit® glassware
• Superior thermal and chemical resistance
• Ideal for reflux, distillation, heating, and small‑scale synthesis
• Durable, high‑clarity glass designed for repeated classroom and lab use

Ideal for School Science Lessons

This 100ml round‑bottom flask is perfect for GCSE, A‑Level, IB, and undergraduate chemistry, enabling students to practise essential laboratory techniques using real jointed glassware. Its mid‑sized capacity makes it a versatile choice for a wide range of curriculum‑linked experiments.

• Conducting reflux reactions in organic chemistry
• Building distillation setups with jointed glassware
• Heating and mixing small to moderate volumes of chemicals
• Supporting technician‑prepared demonstrations and practical sessions