Universal glass connections, for FS capillaries, Y-Splitter, 1 unit(s)Universal glass connections, for FS capillaries, Y Splitter Glass connectors for fused silica capillary columns from 0. 2 to 0. 53 mm ID manufactured from deactivated glass with slightly tapered inner diameter; used to connect two fused silica capillaries of equal or different diameters. Advantages compared to stainless steel fittings are easy connection without tools, optical control during connection, negligible heat capacity and no dead volume.