Needle Seat Assembly, 0.12mm ID Back Catalog number: 11-3889 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21526 Jig, Diaphragm Price on request CTS-10759 Piston Seal Backup Ring Price on request 11-2587 Piston Seal Wash Seal/Priming Valve Seal Price on request