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-3102 Sapphire Plunger Price on request 11-4052 Needle Seal, SIL-30AC, SIL-30ACMP Price on request CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request