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 11-2569 Seal Extension Tube Price on request 11-3795 Sapphire Plunger w/Holder Price on request CTS-10394 Pump Seal, Black Price on request