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-A033 Check Valve Filter Replacement Kit,Beckman,240619 Price on request 15-04-05499 EXP2 Pre-Column Holder and (3) Filter Cartridges, 0.5μm Price on request 10848 Pre-Column Filter, SS frit (10µm), 1/4-28 Price on request