Expansion Premium Manufacturer,Supplier and Exporter in India
Product Code : SCL-GW-11989
Quick Answer: The Expansion Premium is a borosilicate glass 3.3 socket-and-cone expansion adapter with a smooth ground-glass joint finish. It connects laboratory glass joints of different sizes, for example a 14/20 cone to a 19/22 socket.
Last updated: October 2026
Key Features
Expansion adapter for joining glass joints of different sizes
Smooth ground-glass joint finish
Borosilicate glass 3.3, transparent
Sizes 14/20, 19/22, 24/40, 29/42 and 45/50
Autoclavable and reusable
Technical Specifications
Specification
Value
Material
Borosilicate glass 3.3
Joint design
Socket and cone
Finish
Smooth ground-glass joint
Sizes
14/20, 19/22, 24/40, 29/42, 45/50
Common combinations
19/22 socket with 14/20 cone; 24/40 socket with 14/20 cone; 24/40 socket with 19/22 cone
Autoclavable
Yes
About This Product
An expansion adapter is used when two pieces of glassware have different joint sizes. Its cone end goes into the smaller socket on the apparatus, and its larger socket then accepts the next piece of glassware. This version has a smooth ground-glass joint finish and is used in distillation, reflux, filtration and gas-transfer set-ups.
Frequently Asked Questions
Q1. Which joint combinations are common? 19/22 socket with 14/20 cone, 24/40 socket with 14/20 cone, and 24/40 socket with 19/22 cone.
Q2. What finish do the joints have? The joints have a smooth ground-glass finish.
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