Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-7550 Performance Autosampler Needle Price on request CTS-21109 Capillary, 600mm x 0.17mm ID Price on request CTS-21095 Seal Wash (0.0787 ID, Fixed, Bio), 2/pk Price on request