250 μL Syringe, High Pressure Back Catalog number: CTS-21469 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request CTS-12015 Rotor Seal & Pod Repair Kit, Vespel, 3-Groove, 3 p Price on request CTS-10686 Needle Seal, Vespel® Price on request