UPLC Check Valve, Double Ball & Seat, 2/pk Back Catalog number: CTS-A11095-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10324S Seal Pack w/Needle Price on request CTS-A11336-02 Cartridge, Intelligent Valve, 2/pk Price on request CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request