Tank Capacity: 20 Gallon, Oil Tank Size: 23.62", Funnel Size: 15.16", Height Adjusts: 37.4" - 59", Evacuation Drain Hose: 5.7', Hose Diameter: .59", Rigid Wheel Size: 5", Caster Size: 3", Working Pressure: 43.5 PSI. Features 20 Gallon Capacity, Adjustable Height, Stable Mobility, Large Diameter Funnel & Well Designed Details.