Expansion Adapter – Socket 24/29 to Cone 19/26 (Borosilicate Glass)

The Expansion Adapter S 24/29 to C 19/26 is a high quality laboratory glassware connector designed to adapt jointed apparatus with different sizes safely and securely. Manufactured from premium 3.3 borosilicate glass, this adapter offers excellent durability and resistance to heat, thermal shock, and chemical exposure, making it ideal for educational and laboratory use.

Featuring a 24/29 socket (S) and a 19/26 cone (C), this expansion adapter allows smaller jointed flasks, condensers, or adapters to be fitted into larger joint sockets. Precision‑ground joints ensure a tight, leak‑free seal, supporting reliable performance in common chemistry setups such as distillation, reflux, and reaction assemblies.

Clear, robust, and designed for repeated use, this adapter provides essential flexibility when assembling compatible laboratory glassware systems.

Key Features

• Manufactured from 3.3 borosilicate glass
• Expansion adapter for connecting different joint sizes
• Socket (S): 24/29
• Cone (C): 19/26
• Precision ground glass joints for secure, airtight connections
• Excellent heat and chemical resistance
• High clarity for easy inspection of assembled joints
• Supplied as 1 × expansion adapter

Ideal for School Science Lessons

Ideal for GCSE and A Level science lessons, this expansion adapter supports flexible and professional laboratory setups using jointed glassware of different sizes.

• Connecting round bottom flasks, condensers, and adapters
• Supporting distillation and reflux experiments
• Teaching correct assembly of jointed glassware systems
• Allowing safe adaptation of existing laboratory equipment
• Routine use in school laboratories and science prep rooms

Reliable, precise, and laboratory grade, this Borosilicate Expansion Adapter is an essential component for safe, adaptable, and effective practical chemistry teaching in educational environments.