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-10285 TFE 3-Way Valve 4 (V4) Price on request CTS-10583 Plunger Rinse Seal Price on request 11-2587 Piston Seal Wash Seal/Priming Valve Seal Price on request