Needle Seal (For pH 1-14, for operation up to 130 Back Catalog number: CTS-21089 Availability: In the manufacturer's stock Price on request - + Recommended CTS-6809 Mobile Phase Transfer Line, TFE, 3/16" OD x 1/8" I Price on request CTS-12016 Compression Screw, 1/16", SS, 10/pk Price on request CTS-21421 PM Kit, 1290 Binary Pump Price on request