Check Valve Assembly, Outlet Back Catalog number: 11-1599 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4116 Sample Needle Kit, 15µL Price on request CTS-21011 Cartridge Check Valve System Kit Price on request 11-4121 Ceramic Plunger Holder Assembly, LC-10ADvp Price on request