QUICKFIT® Chromatography Columns are manufactured from durable 3.3 expansion borosilicate glass compliant with ISO 3585 (ASTM E-438 Type 1 Class A). They feature a porosity 0 sintered glass disc to securely support column packing and a ground glass socket designed to accept jointed reservoir vessels. Each column is fitted with a ROTAFLO® PTFE stopcock, providing smooth, precise control of eluent flow for reliable, general-purpose chromatography applications.