Cartridge, BioAcquity, I2V Back Catalog number: CTS-21192 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request CTS-8068 Quartz Lens Price on request