Peristaltic Pump Cartridge, WPS/AC Back Catalog number: CTS-21406 Availability: In the manufacturer's stock Price on request - + Recommended CTS-0721 Outlet Check Valve Assembly Price on request CTS-A11095-02 UPLC Check Valve, Double Ball & Seat, 2/pk Price on request CTS-A106 Rotor Seal Price on request