Inlet Check Valve Back Catalog number: CTS-21147 Availability: In the manufacturer's stock Price on request - + Recommended 11-2529 Screw, Comp., 10-32, 304SS, (Gold-Plated), 10/pk Price on request CTS-11371 ACQUITY I2V BSM Performance Maintenance Kit Price on request CTS-11091 ACQUITY BSM Performance Maintenance Kit Price on request