Check Valve, Cartridge Back Catalog number: CTS-21480 Availability: In the manufacturer's stock Price on request - + Recommended CTS-11080 Alliant Solvent Mgr PM Kit Price on request 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request CTS-21075 Tube Assy, BSM Outlet to SM Price on request