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 11-2591 Needle Guide Price on request CTS-A11431-02 Cartridge Check Valve Housing, 2/pk Price on request CTS-10694 Plunger Seal Price on request