Check Valve Assembly, Outlet Back Catalog number: 11-1599 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-0620 Outlet Check Valve Cartridge Price on request CTS-21264 Uncoated Needle Kit Price on request 11-3601 ACQUITY H SM-FTN Performance Main. Kit,700005236 n Price on request