Check Valve Assembly, Outlet Back Catalog number: 11-1599 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4052 Needle Seal, SIL-30AC, SIL-30ACMP Price on request CTS-21422 Needle Seal Kit Price on request CTS-21280 Lamp, ACQUITY Arc/UPLC PDA Performance Maintenance Price on request