Outlet Check Valve Back Catalog number: CTS-A157 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request CTS-A11133 Tube Assembly, Transducer to Check Valve Price on request CTS-21262 Needle, Uncoated 20 Series Price on request