Our 4-bottle oxygen/nitrogen cart accepts four standard "K" size (9" x 56") oxygen or nitrogen bottles in horizontal position. Rigid and durable steel support rails allow easy insertion or removal of bottles. Regulators - including Hi-Low nitrogen regulators - can be easily mounted on the built-in regulator bracket. Our oxygen or nitrogen booster systems can be mounted either on top of the cart or on the front for lower profile. Heavy-duty 5th-wheel steering provides optimal in-hangar manueverability by hand, while the heavy-duty running gear and towbar allows for unlimited vehicle towing across the ramp or airfield.