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-11119-02 Head Plunger Seal, 2/pk Price on request CTS-21240 ACQUITY I-Class SM-FTN Performance Maint. Kit,2890 Price on request 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request