Accommodates steel and aluminum cylinders including D, E and Jumbo D sizes. Meets KKK-1822-C specifications. Constructed of stainless steel and aluminum alloy, will not rust or corrode. Universal bracket base adapts to cylinder size. Neck support bracket is changed with common tools to fit either D or E size cylinders. Heavy-duty nylon strap and metal buckle keep cylinder in place. Bracket can be mounted vertically or horizontally.