Rotor Seal, 6 port, -COH Back Catalog number: CTS-21085 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10548 Gold Plunger Seal, Analytical Heads Price on request CTS-21075 Tube Assy, BSM Outlet to SM Price on request CTS-11091 ACQUITY BSM Performance Maintenance Kit Price on request