Rotor Seal, 2-Groove Back Catalog number: CTS-21163 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21243 1/16'' Ferrule set, 2/pk Price on request 11-3795 Sapphire Plunger w/Holder Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request