Philips Respironics features the smallest and lightest tube they have ever designed in the DreamStation Go 12mm Micro-Flex 6 Ft Tubing. The new improvements give you more freedom of movement, enhanced flexibility, portability, and connectivity while you're sleeping. The DreamStation Go 12mm tubing is 58% smaller than 22mm performance tubing and offers better flexibility and ease of movement when comparing it to the 15mm tubing.