Specification: Collection tray height adjusts from 47-1/4" to 70-1/2" for draining fluids on vehicle lifts. Standard shop air pressure quickly empties used fluids from the storage tank. Heavy duty 15-3/4" diameter drainage funnel with filter screen. 27-1/2"long evacuation hose with 1/4" NPT air coupler and swivel casters. Oil level sight gauge Working pressure: 7PSI Two swivel casters: 4"Dx1-1/5"W Wheels: 7"Dx1-1/2"W Capacity: 30 Gallons (113.5 Liters)