LC-30AD Plunger Holder Assembly, UHP2 (w/Diaphragm Back Catalog number: 11-4073 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-3889 Needle Seat Assembly, 0.12mm ID Price on request CTS-A11095 Check Valve, Double Ball & Seat Price on request 11-2591 Needle Guide Price on request