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 CTS-10566 Alliance Head Plunger Seal Kit, 2/pk Price on request CTS-10711 Alliance Head Plunger Seal Kit, Black, 2/pk Price on request CTS-11091 ACQUITY BSM Performance Maintenance Kit Price on request