Hypersil HPLC Column Prep BDS Phenyl 25x150mm. Hypersil HPLC Column, Preparative BDS Phenyl, XtendedLife, Reversed Phase, Particle Size: 5um, Pore Size: 145A, Max. Pressure: 3500psi 140 bar, Ph: 2-8, Surface Area: 185m2/g, Carbon Load: 5%, Temperature: 60 deg C, Dimension: 25x150mm