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-1010T O-Ring, TFE Price on request CTS-21171 Rotor Seal, H-Assy, 6 Port 2-Position Price on request CTS-10597 Wash Tube Seal Kit, 4/pk Price on request