Rotor Seal, 2-Groove Back Catalog number: CTS-21163 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10560 Seal Wash Plunger Seal, Alliance, 2/pk Price on request CTS-21075 Tube Assy, BSM Outlet to SM Price on request CTS-10396 Washer Thermo/Dionex™ Model: P1000, P2000, P4000 Price on request