Steel cabinets for storage of cylinders. Cylinder storage capacity is based on cylinder size. Sides are made of expanded steel for an open view design. The top, back, and bottom is made of solid sheet steel. Lockable doors protect cylinders (padlock not included). Base includes lag holes for securing cylinders. Vertical units include chains for securing cylinders. Includes red lettered signage noting "Flammable-No Smoking" contents. Meets OSHA 1910.110 (f)(6)(ii), ANSI NFPA 55 + 58 and CGA P-1 design standards. Rugged steel construction with a baked-in powder coated safety yellow finish for toughness.