Hypersil HPLC Column Prep BDS C18 10x50mm. Hypersil HPLC Column, Preparative BDS C18, Standard, Reversed Phase, Particle Size: 10um, Pore Size: 145A, Max. Pressure: 4300psi (300 bar), Ph: 2-8, Surface Area: 185m2/g, Carbon Load: 11%, Dimension: 10x50mm, for from analytical to preparative LC scale