Seal, Wash Back Catalog number: 11-1603 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-1601 Seal, GFP, High Pressure, Piston Price on request CTS-2294 Plunger Seal Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request