Seal, Polyethylene, High Pressure, Piston Back Catalog number: 11-1602 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11367 Piston, Low Pressure Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request CTS-21015 Ferrule, 1/16", SS, 3/pk Price on request