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 11-1601 Seal, GFP, High Pressure, Piston Price on request CTS-21526 Jig, Diaphragm Price on request CTS-0012 Insert Seal Parts Kit Price on request