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-10583 Plunger Rinse Seal Price on request CTS-21192 Cartridge, BioAcquity, I2V Price on request CTS-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request