We stock every part for every Data Aire Systems humidifier ever made. Our technical support team can assist you should you have any questions about your Data Aire Systems humidifier. Order from the source of Data Aire Systems humidifier cylinders and parts just like the contractors do. You will find on-line owners manuals as well as exploded views of your model on its associated humidifier parts page. Remember to replace your Data Aire Systems Steam tank at least once per year for optimal operation. Most Data Aire Systems Steam humidifiers will bring up a warning sign when the steam tank fails. Data Aire Systems uses the Nortec brand of humidifiers in all their units and we are the contractors and owners source for those parts.