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-11121-02 Wash Seal, 2/pk Price on request CTS-21406 Peristaltic Pump Cartridge, WPS/AC Price on request CTS-5746 Reference Valve Rebuild Kit Price on request