UPLC Check Valve Assy, Spring Loaded Back Catalog number: CTS-21100 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21564 Needle, Uncoated 10 Series Price on request CTS-21085 Rotor Seal, 6 port, -COH Price on request CTS-11080 Alliant Solvent Mgr PM Kit Price on request