Inlet Check Valve Back Catalog number: CTS-21145 Availability: In the manufacturer's stock Price on request - + Recommended 11-4048 PEEK™ Needle Seal, SIL-30AC, SIL-30ACMP Price on request CTS-1010T O-Ring, TFE Price on request 11-2891 PTFE Diaphragm, 2/pk Price on request