Plain Chromatography Absorption Columns "PSAW" without stopcock 360/01 Effective Length 20 cm., Outer Dia. 10 mm. 360/02 Effective Length 30 cm., Outer Dia. 15 mm. 360/03 Effective Length 50 cm., Outer Dia. 20 mm. 360/04 Effective Length 60 cm., Outer Dia. 25 mm. 360/05 Effective Length 60 cm., Outer Dia. 40 mm. 360/06 Effective Length 100 cm., Outer Dia.50 mm. 360/07 Effective Length 115cm., Outer Dia.100 mm. 360/08 Effective Length 180cm., Outer Dia.100 mm. (Please Mention Porosity of Disc Required in Column )