Performance Autosampler Needle Back Catalog number: CTS-7550 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request 11-1602 Seal, Polyethylene, High Pressure, Piston Price on request CTS-8068 Quartz Lens Price on request