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 CTS-2369 Sapphire Plunger Price on request CTS-10285 TFE 3-Way Valve 4 (V4) Price on request CTS-A11336 Cartridge, Intelligent Valve Price on request