Check Valve Assembly, Inlet Back Catalog number: 11-1598 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request CTS-21075 Tube Assy, BSM Outlet to SM Price on request CTS-10475 Sapphire Plunger Kit Price on request