This Oxygen Cylinder Cart from Drive Medical is a great choice when you need to store many oxygen cylinders. Supporting cylinders of size E, D, C, or M9, this cart is versatile and space-saving. 5" Swivel casters with brakes allow easy mobility of oxygen cylinders without worrying if they will roll away. Chrome plated finish. Dual lifting handles. For use with 12 C, D, E, or M9 Cylinders.