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-10583 Plunger Rinse Seal Price on request CTS-21100 UPLC Check Valve Assy, Spring Loaded Price on request CTS-0721 Outlet Check Valve Assembly Price on request