Seal, Wash Back Catalog number: 11-1603 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11431-02 Cartridge Check Valve Housing, 2/pk Price on request CTS-10693 Plunger Seal Price on request 11-4134 Rotor Seal & Pod Repair Kit, Vespel, 3-Groove for Price on request