Two-Wheel Tilt-Back Vertical Medical Cylinder Cart Load Capacity 250 lb Cylinder Capacity 6 Cylinder Storage Orientation Vertical For Max Tank Dia 4 1/2 in Axle-Mounted Wheel Dia 8 in Axle-Mounted Wheel Type Semipneumatic Caster/Wheel Configuration (2) Axle-Mounted Overall Depth 18 1/4 in Overall Width 18 1/2 in Overall Height 21 1/2 in