UPLC Check Valve Assy, Spring Loaded Back Catalog number: CTS-21100 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10573 Injection Valve Rotor Seal Price on request 11-3601 ACQUITY H SM-FTN Performance Main. Kit,700005236 n Price on request CTS-1042 Plunger Insertion Tool Price on request