Seal, Polyethylene, High Pressure, Piston Back Catalog number: 11-1602 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21010 Cartridge Check Valve Housing, 2/pk Price on request CTS-11367 Piston, Low Pressure Price on request 11-3602 Tubing, Pump Outlet, GP Price on request