Seal, Wash Back Catalog number: 11-1603 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request CTS-10285 TFE 3-Way Valve 4 (V4) Price on request CTS-10583 Plunger Rinse Seal Price on request