Needle Kit, 15 µL with Needle Seat and Needle Guid Back Catalog number: CTS-21287 Availability: In the manufacturer's stock Price on request - + Recommended 11-2891 PTFE Diaphragm, 2/pk Price on request CTS-11313 PEEK™ Rotor, LPV Price on request CTS-A11336-02 Cartridge, Intelligent Valve, 2/pk Price on request