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-3209 Syringe Seal, 250μL/2500μL Price on request CTS-2963 Backup Seal Price on request 11-4150 Tubing D-R Assembly Price on request