Cartridge, BioAcquity, I2V Back Catalog number: CTS-21192 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21591 PM Kit, G4226A Price on request CTS-10324S Seal Pack w/Needle Price on request CTS-10770 Waste Valve, V3 (2 Way Solenoid Valve) Price on request