Rotor Seal, 2-Groove Back Catalog number: CTS-21163 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10396 Washer Thermo/Dionex™ Model: P1000, P2000, P4000 Price on request CTS-11265 Kit S200 Standard Pump Seals Price on request CTS-0037 Tube, Left Inlet Pigtail Price on request