Inlet Check Valve Back Catalog number: CTS-21147 Availability: In the manufacturer's stock Price on request - + Recommended 11-4116 Sample Needle Kit, 15µL Price on request 11-3601 ACQUITY H SM-FTN Performance Main. Kit,700005236 n Price on request 11-4048 PEEK™ Needle Seal, SIL-30AC, SIL-30ACMP Price on request