Carex's Lightweight CPAP Tubing has a soft, more flexible feel providing patients with the high quality they expect. Equipped with 22mm cuffs, our improved tubing is lighter and more flexible than comparable tubing. This tubing is gray in color and available in a variety of lengths. Intended for single-patient use. Carex offers a variety of single-patient use lightweight and specialty tubing designed to accommodate virtually all CPAP, APAP, and BiLevel machines.