The light-weight and versatile Respironics Pure White Thin 6 Foot Performance CPAP/BiPAP Tubes (15mm) is made to work with CPAP as well as BiLevel equipments that have a setup alternative for a 15 mm tubing. *Utilize a lightweight mask? Make use of a lightweight pipe! This is an extremely versatile tubes that is approximately 20% lighter than a typical tubing decreasing drag as well as disruption of the mask seal. *The cuff style provides itself to easy on but off of the tube. The common 22 mm dimension cuff fits on all mask links. *Complying with industry requirements, the tube is 6 foot in length and can be alternatived to a 22 mm tube if the machine has a 15 mm setup option. *The white hose has a crisp, tidy look.