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-10566 Alliance Head Plunger Seal Kit, 2/pk Price on request CTS-11282 1525 Performance Maintenance Kit Price on request CTS-6613 Black Plunger Seal Price on request