This is oxygen tubing for standard oxygen regulators. This product has been manufactured using soft disposable plastic for a more comfortable fit. It also features a 3 channel safety construction that provides an uninterrupted flow of oxygen. This tubing also has no memory, meaning it will lie straight when uncoiled. Tubing without memory will not "torque" or pull on the cannula it's attached to – providing more comfort, more complete movement, and helping keep the cannula in place. This product is available in various tubing lengths: 7', 14', 25', 40', and 50'.