Cogent Bidentate C18, 100 x 2,1mm, 4µm Back Catalog number: 40018-10P-2 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10919 2μm Precolumn Filter Insert,Waters,WAT088084 Price on request 15-04-05502 EXP2 In-Line Filter Holder and (3) Filter Cartridges, 0.2μm Price on request 15-04-05242 EXP2 Pre-Column Filter Holder (Fittings Included, for use w/EXP2 Filter Cartridges) Price on request