The ResMed SlimLine™ tubing allows connection of the device to your face mask. Crafted to have a slim, lightweight and flexible structure, its sleek design is meticulously fashioned to enhance your freedom of movement in bed. This ensures that your mask won't drag as you shift positions, granting you a peaceful, undisturbed night's rest. It is designed for use with S9™ series, Air10™ series, Lumis™ and Stellar™ devices only. Pay by insurance? Please call (877) 799-0202.