Cartridge, Intelligent Valve Back Catalog number: CTS-A11336 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10493 Check Valve Cartridge, 2/pk Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request CTS-0038 Tube, Right Inlet Pigtail Price on request