This is the tubing that comes as standard with the S10 Series CPAP/APAP machines. The air tube, which is 15mm in diameter, is ultra-light, flexible and provides a unique alternative to bulky, generic 6 foot hoses. This is not a heated hose.
SlimLine Tubing is lighter and many times more flexible than standard tubing. It works well with smaller lightweight masks, as it is less likely to pull on the mask and break the cushion seal.