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 11-4121 Ceramic Plunger Holder Assembly, LC-10ADvp Price on request CTS-10340 Plunger Seal Price on request CTS-5746 Reference Valve Rebuild Kit Price on request