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 11-2570 Needle Seat Price on request CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request CTS-6958 Indicator Rod Kit Price on request