Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11434 Sapphire Plunger Price on request CTS-21171 Rotor Seal, H-Assy, 6 Port 2-Position Price on request CTS-A168 250μL Syringe Price on request