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.
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.
satisfied with the product