Rotor Seal, H-Assy, 6 Port 2-Position Back Catalog number: CTS-21171 Availability: In the manufacturer's stock Price on request - + Recommended CTS-6809 Mobile Phase Transfer Line, TFE, 3/16" OD x 1/8" I Price on request 11-1597 Piston Assembly, TZP Price on request CTS-10759 Piston Seal Backup Ring Price on request