UPLC Check Valve Assy, Spring Loaded Back Catalog number: CTS-21100 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21011 Cartridge Check Valve System Kit Price on request 11-2570 Needle Seat Price on request CTS-21169 Assy, Capillary, 90mm x 0.17mm ID, w/Fittings Price on request