Outlet Check Valve Back Catalog number: CTS-A121 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request 11-4052 Needle Seal, SIL-30AC, SIL-30ACMP Price on request CTS-0721 Outlet Check Valve Assembly Price on request