F&P SleepStyle Auto CPAP Machine ThermoSmart Heated Hose Tubing 14301 One Size Fits All: Easy W011 32 M 120 One Size Fits All: Easy Custom Fit for a Wide Range of Users The outer gel flap conforms to the user's face while the thicker inner wall molds to the face to support and stabilize the seal F&P SleepStyle ThermoSmart CPAP Hose Tubing with AirSpiral technology has an insulating spiral and a heating spiral that work together to minimize condensation and reduce heat loss during sleep apnea therapy SleepStyle's ThermoSmart tube with AirSpiral also reduces weight on the bed and pulling on your mask to promote comfort and stability