Self-Evacuating Waste Oil Extractor 24-gallon waste oil extractor utilizes shop air to extract oil via suction probes directly into the units holding tank. Collecting waste oil can then be evacuated from the 24-gallon tank into larger waste oil tanks using shop air. Features an easy to read vacuum gauge for suction and safety pop-off valve to prevent over pressurization. Includes removable storage tray, built-in fluid gauge, 7' discharge hose, suction hose and 6-piece probe set. Power-coated black paint. Assembly required