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-21011 Cartridge Check Valve System Kit Price on request 11-4180 LPV Rotor, SIL-30AC, SIL-30ACMP Price on request CTS-5559 Priming Syringe Needle Price on request