Cartridge, BioAcquity, I2V Back Catalog number: CTS-21192 Availability: In the manufacturer's stock Price on request - + Recommended CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request CTS-21526 Jig, Diaphragm Price on request CTS-11141 ACQUITY SM Performance Maintenance Kit, 700005236 Price on request