UPLC Check Valve Assy, Spring Loaded Back Catalog number: CTS-21100 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request CTS-21169 Assy, Capillary, 90mm x 0.17mm ID, w/Fittings Price on request CTS-10583 Plunger Rinse Seal Price on request