6-gallon steel tank (evacs 70% of capacity). Both empty and vacuum charge by using air pressure. 7" wheels for easy handling. Easy-to-read vacuum gauge. 10' evacuation hose. Sight tube shows fluid level. Storage tube for suction probes. Extract used oil and other fluids from any vehicle using this vacuum extraction system. Great for cars, boats, motorcycles and small engines. Vacuum charged unit is completely portable and easy to use. Includes five suction probes (metal and flexible plastic) equipped with quick-disconnect couplers for fluid extraction from the dipstick or other opening. Adapters for BMW, Mercedes and VW are also included. Self-evacuating feature makes emptying clean and easy.