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 11-1600 Check Valve, Secondary Inlet Price on request CTS-0037 Tube, Left Inlet Pigtail Price on request CTS-5531-07 Solvent Bottle Filter, 7/pk Price on request