Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11313 PEEK™ Rotor, LPV Price on request CTS-6613 Black Plunger Seal Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request