In many operations like reaction, extraction & absorption, the transparency of glass is particular advantage. For such process a range of glass column components are available in Borosilicate glass. Advantages of Glass Column: 1. Insert to almost all chemicals hence no risk of contamination. 2. Transparency allows visual monitoring of the process, flow patterns, colour changes etc. 3. Almost universal resistance to corrosion. 4. Smooth surface permits easy cleaning and prevents fouling.