Check Valve, Cartridge Back Catalog number: CTS-21480 Availability: In the manufacturer's stock Price on request - + Recommended CTS-12013 Tungsten Lamp (1000 hr) Price on request CTS-A11145 Tube Assy, System Outlet, SDS Price on request CTS-12015 Rotor Seal & Pod Repair Kit, Vespel, 3-Groove, 3 p Price on request