Check Valve Assembly, Inlet Back Catalog number: 11-1598 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2891 PTFE Diaphragm, 2/pk Price on request CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request 11-4048 PEEK™ Needle Seal, SIL-30AC, SIL-30ACMP Price on request