The Respironics Premium tube is the standard tubing for CPAP and Bilevel machines. At 6 feet long and with a 22 mm diameter, it gives the freedom to place your machine where you need to. Some patients find that if the tube is suspended or held place, it is easiest to use.
A little stiff as it is brand new but overall excellent.
It's great. Very convenient to use.
Overall very satisfactory
Normal as usual!
it is a tube and it does what it is supposed to do. you charge too much though.