The ThermoSmart Heated CPAP Tubing is designed exclusively for use with Fisher & Paykel's ICON Series CPAP Machines. ThermoSmart Tubing features an internal heated coil that eliminates rainout in the hose and delivers optimal temperature and humidity levels to the user regardelss of outside air temperature or conditions. Come in a 6 Foot Standard Size Only for use with the Icon Series CPAP Machines