Buying Perphormax replacement seals and tubing for your Hitachi Roche 704 Chemistry Analyzers means you value quality. Each Perphormax replacement seal and tube is developed, manufactured, and tested using a rigorous process that ensures each part meets and even exceeds the quality of their OEM counterparts. Plus, Peripheral Visions offers these replacement chemistry analyzer seals and tubes at a fraction of the cost of original parts. Order yours today! With over 34 years of experience, Peripheral Visions sets the standard for superior quality chemistry analyzer replacement parts, consumables, and accessories for general laboratories, hospital service organizations, reagent and analyzer manufacturers, MOH's, analyzer rebuilders, and biomedical professionals worldwide. Peripheral Visions also provides tech support and application advice from real lab equipment experts on a wide variety of analyzer brands and models, as well as the electrodes and ISE's.