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 11-1600 Check Valve, Secondary Inlet Price on request CTS-10396 Washer Thermo/Dionex™ Model: P1000, P2000, P4000 Price on request CTS-5656 Sapphire Plunger Price on request