2 WAY USAGE: Pneumatic and manual mode to fit any condition. The pneumatic mode provides higher speed while manual mode requires no other equipment to work with SPEEDY EXTRACTION: Fast extraction speed of 1.8 L /min. The oil change pump extracts engine oil in a 4 cylinder car within 5 minutes at pneumatic mode NO OIL LEFT: Vacuum fluid extractor comes with a main tube and 3 kinds of tubes with different diameter go into the bottom of oil pan and suck up every drop of oil. The fluid extractor can be used to remove brake fluid from brake system with additional brake bleeding hose Easy to Use: With FOUR UNCLES oil extractor, you don’t have to get under the car anymore to do fluid changing and there is no mess to clean afterward. Just simply open the hook and insert tube to change engine oil WORK FREELY: Not limited to places, change oil anytime, anywhere. Good chioce for working on a car in the garage, also suitable for using outdoors on boats, truck, or lawn mowers