Check Valve Cartridge, Ceramic, 2/pk Back Catalog number: CTS-21463 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21169 Assy, Capillary, 90mm x 0.17mm ID, w/Fittings Price on request CTS-5531-07 Solvent Bottle Filter, 7/pk Price on request CTS-A11142 Tube Assy, Inject Outlet Price on request