UPLC Check Valve, Double Ball & Seat, 2/pk Back Catalog number: CTS-A11095-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11431-02 Cartridge Check Valve Housing, 2/pk Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request CTS-3209 Syringe Seal, 250μL/2500μL Price on request