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-10548 Gold Plunger Seal, Analytical Heads Price on request CTS-11091 ACQUITY BSM Performance Maintenance Kit Price on request CTS-21192 Cartridge, BioAcquity, I2V Price on request