Gold Plunger Seal Back Catalog number: 11-4133 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request CTS-A126 Outlet Check Valve Assembly Price on request CTS-21100 UPLC Check Valve Assy, Spring Loaded Price on request