or
SiliCycle SiliaSep Flash Cartridges, Silica-Based, C18 (17%) mono, 40 to 63 um, 60 A, Column Type: 4 g Flash Cartridge, Column Format: 12 x 98 mm, Max. Pressure: 225 psi/16 bar, Qty: 2 Pk., Polypropylene, Particle Size: 40 to 63 um, Technique: Flash Chrom