Needle Seal, PEEK™ SIL-20 Back Catalog number: CTS-11315 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-1597 Piston Assembly, TZP Price on request CTS-10770 Waste Valve, V3 (2 Way Solenoid Valve) Price on request CTS-10759 Piston Seal Backup Ring Price on request