Product Overview This is the replacement tube for use with the ComfortLine Heated Tubing Kit. This is the tubing only. This product does NOT include the power supply and cords that are required to heat the tube. Features Long Dimensions The ComfortLine Heated Tubing measures 71.25 inches from end to end. This measurement includes the cuffs. The diameter of the tube is 19mm. Compatibility PR System One devices with software Versions EARLIER than 1.24 are not recommended for use with the ComfortLine. The version of software flashes on the display screen when the machine is first turned on. Specifications Brand: 3B Medical Manufacturer: 3B Medical Included In Box: (1) Heated Tubing Tube Length: 71.25" (1.83m) Tube Internal Diameter: 3/4" (19mm) Weight of Tube Alone: 4.16 oz Tube & Ambient Temperatures: When heating without airflow from a machine, the hose heats to between 95°F (35°C) and 104°F (40°C) Manufacturer Warranty on Tube: 30 Days Important Tips Important Tips Universal- can be used with any CPAP / BIPAP that can use standard tubing. Separate power supply, does not use power from your CPAP. Reduces chances of rainout. Does NOT come with A/C or D/C power adapter.