FGSI specializes in production of Double Walled Glass Refills for Vacuum Flasks. We regularly produce glass refills from 125ml capacity upto 3000ml in both traditional narrow mouth (flasks) and also in wide mouth (food flasks) categories. We are one of the very few manufacturers in the world, capable of producing refills upto 3000ml. The designs of each individual customer are kept confidential.

The company uses 'Einedrucker Technology' in which both the inner and outer walls are blown together to make a single piece Glass Refill. Since the unit is a single piece without any welding, it has better mechanical strength. Further spacers are NOT used between two walls.

Although most of our production is with 'side nozzle (Capillary)', we are fully capable and equipped for production of glass refills with 'center nozzle'.