Needle Seal (For pH 1-14, for operation up to 130 Back Catalog number: CTS-21089 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21566 PM Kit, Seal Wash for Binary Pump G4204A Price on request 11-4073 LC-30AD Plunger Holder Assembly, UHP2 (w/Diaphragm Price on request CTS-7162 Plunger Seal, Black Price on request