Four-Wheel Vertical Medical Cylinder Cart Load Capacity 2 400 lb Cylinder Capacity 12 Cylinder Storage Orientation Vertical For Max Tank Dia 4 1/2 in Caster Wheel Dia 4 in Caster Wheel Type Standard Caster/Wheel Configuration (2) Rigid (2) Swivel with Brake Overall Depth 23 1/2 in Overall Width 21 in Overall Height 35 in