Drive Medical's Oxygen Cylinder Cart is a great choice when you need to store many oxygen cylinders. Supporting cylinders of sizes E, D, C, and M9, this oxygen bottle cart is versatile and space-saving. Swivel casters with brakes allow easy mobility of oxygen cylinders without worrying if they will roll away. The cart holds a maximum of 12 cylinders. Backed by a limited lifetime warranty from Drive Medical, a leading brand of medical goods for more than 20 years, you can purchase with confidence