Needle Seat Back Catalog number: 11-2570 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A126 Outlet Check Valve Assembly Price on request CTS-21155 Capillary, 300mm x 0.17mm ID, w/Fittings Price on request CTS-5464 Clip Ring, Plunger Retainer Price on request