Piston Assembly, TZP Back Catalog number: 11-1597 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4116 Sample Needle Kit, 15µL Price on request CTS-21010 Cartridge Check Valve Housing, 2/pk Price on request 11-1602 Seal, Polyethylene, High Pressure, Piston Price on request