Needle Seat Assembly, 0.12mm ID Back Catalog number: 11-3889 Availability: In the manufacturer's stock Price on request - + Recommended CTS-11141 ACQUITY SM Performance Maintenance Kit, 700005236 Price on request 11-2525 1/4" Short Comp. Screw (Gold-Plated), 10/pk Price on request 11-2642 Needle Port Seal, AS-100, ASI-100T Price on request