Check Valve Cartridge, 2/pk Back Catalog number: CTS-A094 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request 11-3889 Needle Seat Assembly, 0.12mm ID Price on request CTS-0038 Tube, Right Inlet Pigtail Price on request