Check Valve, Secondary Inlet Back Catalog number: 11-1600 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4052 Needle Seal, SIL-30AC, SIL-30ACMP Price on request 11-4150 Tubing D-R Assembly Price on request CTS-10597 Wash Tube Seal Kit, 4/pk Price on request