Rotor Seal, 6 port, Rear Back Catalog number: CTS-21164 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10285 TFE 3-Way Valve 4 (V4) Price on request 11-3601 ACQUITY H SM-FTN Performance Main. Kit,700005236 n Price on request CTS-10573 Injection Valve Rotor Seal Price on request