Black Plunger Seal Back Catalog number: CTS-6613 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-2324 Needle Wash Frit Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request CTS-12015 Rotor Seal & Pod Repair Kit, Vespel, 3-Groove, 3 p Price on request