The 4-foot and 6-foot Slim Style Tubes are replacement tubes for HDM's Z1/Z2 travel CPAP machine. The tubes come with a 15 mm diameter, which is seven inches thinner than the standard tube size.
The 15 mm tube is the thinnest tube on the market, making it optimal for travel.
Product is only compatible with Z1 products.
What is the advantage to the 15 mm tube?
The biggest positive is that its travel friendly. The entire Z1 system is designed to be the top travel CPAP machine on the market, and the thin tube is designed to fit easily into any travel bag.