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-21240 ACQUITY I-Class SM-FTN Performance Maint. Kit,2890 Price on request 11-4060 Inlet Check Valve Price on request CTS-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request