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-21422 Needle Seal Kit Price on request CTS-10597 Wash Tube Seal Kit, 4/pk Price on request 11-4126 Plunger Seal and Back Up Ring Price on request