Hypersil HPLC Column 100 mm. Hypersil HPLC Column, preparative HS C18, Standard, Reversed Phase, Particle Size: 5 um, Pore Size: 100A, Max. Pressure: 4300 psi (300 bar), pH: 2 to 9, Surface Area: 350 m2/g, Temperature: 60deg C, USP Type: L1, Stationary Phase: C18, Dimensions: 100X10mm