UPLC Check Valve Assy, Spring Loaded Back Catalog number: CTS-21100 Availability: In the manufacturer's stock Price on request - + Recommended 11-4052 Needle Seal, SIL-30AC, SIL-30ACMP Price on request CTS-5559 Priming Syringe Needle Price on request CTS-6613 Black Plunger Seal Price on request