Seal, Polyethylene, High Pressure, Piston Back Catalog number: 11-1602 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4181 Seal Wash (0.0787 ID, Fixed), 2/pk Price on request CTS-A11095 Check Valve, Double Ball & Seat Price on request CTS-10597 Wash Tube Seal Kit, 4/pk Price on request