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-10527 Precolumn Filter Assembly,Waters,WAT035190, Old# WAT084561 Price on request 15-04-03097 EXP Pre-Column Filter Cartridge, 0.2 µm, 10/pk Price on request 15-04-05259 EXP2 Filter Cartridge, 3mm, 2µm, 5/pk Price on request