Outlet Check Valve Assembly Back Catalog number: CTS-A126 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request PL7050150 MarvelXACT PLS 50µm x 150mm Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request