Valve Cartridge, Bio-compatible, NCS/NCP, 2G Back Catalog number: CTS-21743 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21742 Wrench, Open-ended, 14mm x 14mm Price on request CTS-21770 PEEK™ Frit 5/pk Price on request CTS-21134 1/16'' Short Hex PEEK™ fitting Price on request